Functional recombinantly prepared synthetic protein polymer

ABSTRACT

Novel polymers are provided which are produced by recombinant techniques. The polymers are characterized by having a small repeating sequence which provides for strands capable of associating, resulting in useful structural characteristics, where the strands are joined by turns or loops which are flexible and available for interaction with the environment. Specifically, repeating groups of naturally occurring proteins such as silk are modified by introduction of an amino-acid sequence at a site which provides for a turn between strands to provide for readily available oligopeptides capable of interacting with molecules in the environment.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a: continuation-in-part application of U.S. application Ser. No. 07/269,429, filed Nov. 9, 1988, now abandoned which is a continuation-in-part of application Ser. No. 07/114,619 filed Oct. 29, 1987, now U.S. Pat. No. 5,243,028 which is a continuation-in-part of application Ser. No. 06/927,258, filed Nov. 4, 1986, now abandoned and claims priority to PCT 89/05016, filed Nov. 7, 1989.

INTRODUCTION

1. Technical Field

This invention is related to the production of high molecular weight polymers of amino acids based on biologically and chemically active structural polymers.

2. Background

Recombinant DNA technology has been applied in the isolation of natural genes and the expression of these genes in a variety of host cells. Typically, this technology has had utility in producing biologically active polypeptides, such as interferons or peptide hormones, which were impractical to produce in useful amounts by other means. It was also possible to produce modified proteins by isolating natural genes and utilizing the techniques of site specific, in vitro mutagenesis to alter these genes and thereby change the polypeptides produced. Other polypeptides have been created by combining sections of various native genes to produce new polypeptides that are chimeric molecules of the several naturally occurring molecules.

With the advent of efficient and automated methods for the chemical synthesis of DNA, it has become possible to synthesize entire genes and to modify such synthetic genes at will during the course of synthesis. However, these various technologies have been applied to the production of natural or modified versions of natural polypeptides. There have been very few attempts to use these technologies to create substantially new polypeptides. In nature, polypeptides have a wide range of chemical, physical and physiological characteristics. Nevertheless there are commercial applications for which known, naturally occurring polypeptides are not appropriate.

While biotechnology is versatile, usually it has been limited in its applications to naturally occurring products or modifications of naturally occurring molecules. One great strength of organic chemical synthesis, by contrast, has been the ability to transform inexpensive carbon materials to a wide variety of polymeric molecules, including naturally occurring molecules, but most importantly entirely new chemical structures, such as polypropylene and polyacrylates, which have defined and predicted chemical properties not associated with naturally occurring molecules.

Such materials, particularly high-molecular weight polymers containing repeating sequences of amino acids, have proven difficult to produce by biochemical means. The genes necessary for producing large peptides containing repeating units of amino acids were unstable and often underwent intermolecular recombination causing deletions of repeating units in the gene. The development of a biotechnology which would produce polymeric molecules by biological processes similar to those available by organic synthesis would significantly broaden the range of applications of biotechnology.

BRIEF DESCRIPTION OF THE RELEVANT LITERATURE

The cloning of multiple lactose operators up to four in tandem is disclosed by Sadler et al., Gene, (1980) 8:279-300. Hybrid bacterial plasmids containing highly repeated satellite DNA is disclosed by Brutlag et al., Cell, (1977) 10:509-519. The synthesis of a poly(aspartyl-phenylalanine) in bacteria is disclosed by Doel et al. Nucleic Acids Research, (1980) 8:4575-4592. A method for enriching for proline content by cloning a plasmid which codes for the production of a proline polymer was disclosed by Kangas et al., Applied and Environmental Microbiology, (1982) 43:629-635. The biological limitations on the length of highly repetitive DNA sequences that may be stably maintained within plasmid replicons is discussed by Gupta et al. in Bio/Technology, p. 602-609, September 1983.

SUMMARY OF THE INVENTION

Methods and compositions are provided for the production of polypeptides having repetitive oligomeric units or strands which interact forming a structural component, where the structural components are separated by different amino-acid sequences having particular functional capabilities. (By "strands" is intended an ordered sequence capable of alignment with a second strand having substantially the same or a complementary sequence e.g., hydrophobic aligns with hydrophobic and hydrophilic aligns with hydrophilic.) The components of the repetitive units provide a structure which allows for availability of the intervening units for interacting with the environment, such as solutions, gases, gels and the like where the intervening sequence is substantially free of steric inhibition to interact with other molecules as compared to the strands. Long nucleic-acid sequences are built up by synthesizing nucleic-acid oligomers which express a plurality of individual repetitive peptide units and the oligomers are joined to provide a polynucleotide of the desired length. By providing for specific restriction sites which are relatively evenly spaced, additional sequences may be introduced at sites which provide for turns or other functional entity between repetitive strands. The resulting nucleic-acid open-reading frames may then be introduced into an appropriate expression vector for expression of the desired protein product.

DESCRIPTION OF THE SPECIFIC EMBODIMENTS

Novel polypeptides are provided which are polyoligomers of repeating, relatively short, amino acid sequence units forming strands, where the strands are separated by a different oligomeric unit which results in a sequence available to the environment of the polypeptide for a variety of functions.

The polypeptides which are encoded for by the nucleic acid sequences of the subject invention provide for strands which may align to provide for a basic structure. The strands will be protein chain segments of more or less linear conformation. The strands may be aligned in reverse or direct alignment, where a plurality of strands are separated by a sequence other than the repetitive sequence as a functional entity between the strands, so as to be accessible to solutes or components in the medium. The strands will be based primarily on repeating units of naturally occurring polymers, where the repeating units generally are at least three amino acids and may include the same amino acid twice.

The polymers of this invention may be used to provide a variety of structures for a variety, of purposes. Depending on the repeating units and their relationship to known polymeric structures, analogous mechanical, e.g., tensile properties, may be achieved, which may be modified for a particular intended purpose. The subject polymers may be used by themselves to produce various articles, including formed objects, coatings, or other structural or non-structural components including fibers, films, membranes, adhesives, emulsions, and the like or with other compounds or compositions to form composites, laminates or combinations of the aforementioned products.

The structurally aligned elements of the polymers may be β-sheets, α-helices, dynamic β-spirals, collagen helices, Type I or II, or combinations thereof, where there will be intervening elements which will be of different sequence and structure and will usually not participate in the aligned elements. For the most part, these intervening sequences will be loops or turns.

The genes of the subject invention comprise multimers of DNA sequences encoding the same amino acid sequence unit, where two or more different multimers encoding different amino acid units may be joined together to form a block copolymer. The individual units will have from 3 to 30 amino acids (9 to 90 nt), more usually 3 or 4 to 25 amino acids (9 to 75 nt), particularly 3 or 4 to 15 amino acids (9 to 45 nt), more particularly 3 or 4 to 9 amino acids (9 to 27 nt), usually having the same amino acid appearing at least twice in the same unit, generally separated by at least one amino acid. The units of the multimer coding for the same amino acid sequence may involve two or more nucleotide sequences, relying on the codon redundancy to achieve the same amino acid sequence.

The units of the strands will generally be at least about 25 amino acids and not more than about 200 amino acids, usually not more than about 100 amino acids, preferably from about 30 to 75 amino acids. The other sequence separating the strands will generally be at least about 4, more usually 6 amino acids and not more than about 50, usually not more than about 30 amino acids, more usually not more than about 20 amino acids.

For the most part the DNA compositions of this invention may be depicted by the following formula:

    K.sub.k (W(M).sub.m X.sub.x ((N).sub.n Y.sub.y).sub.i L.sub.1

wherein:

K is a DNA sequence encoding an amino acid sequence of from about 1 to 125 amino acids, usually 1 to 60 amino acids, generally being fewer than about 20% of the total number of amino acids, more generally being fewer than about 10% of the total number of amino acids, which may be any sequence, particularly a naturally occurring sequence where the multimer structural gene has been fused to another DNA sequence in reading frame. K, if present, will have the initiation methionine codon.

k is 0or 1;

W has the formula:

     (A).sub.n (B).sub.p !.sub.q

wherein:

A is a DNA sequence coding each time that it appears for the same amino acid sequence unit, normally having at least one amino acid appear at least twice in the sequence, where A will generally be from about 9 nucleotides (nt) and not more than about 90 nt, more usually from about 9 or 12 to 75 nucleotides, preferably from about 9 or 12 to 45 nt, more preferably from about 9 or 12 to 27 nt;

where there will usually be at least two different A's, usually not more than ten different A's, more usually not more than six different A's, which code for the same amino acid sequence but differ from each other by at least one nucleotide and may differ by as many as ten nucleotides, usually not differing by more than about five nucleotides from another A sequence, each of the different A's usually being repeated at least twice at least two different codons are employed for the same amino acid, e.g., GGC and GGA for glycine, in different A's coding for the same amino acid sequence unit;

n will be an integer of at least 2, usually at least 4, more usually at least about 8, and not more than about 250, usually not more than about 200, frequently not more than about 125, and in some instances may not exceed about 50;

B is a DNA sequence different from A coding for an amino acid sequence other than the amino acid sequence unit coded by the A unit and serves as a linking unit between oligomers of A units. B will generally have from about 3 to 45 nt, (1 to 15 amino acids) more usually from about 3 to 30 nt (1 to 10 amino acids);

where the B units appearing in the gene may be the same or different, there usually not being more than about 10 different B units, more usually not more than about 5 different B units, where the B units may differ in from 1 to 45 nt, more usually from about 1 to 15 nt, where the different B's may code for the same or different amino acid sequence;

p is 0 or 1 and may differ each time there is a successive A unit;

q is an integer of at least 1 and will vary with the number of nucleotides in A and B, as well as the values of n and p. The variable q will be selected so as to provide for at least 90 nucleotides for the multimeric portion of the structural gene, preferably at least about 150 nt, more preferably at least 450 nt, and most preferably at least 900 nucleotides and the number of nucleotides will usually not exceed about 10,002, more usually not exceeding about 8,001, generally being in the range of about 900 to 6,000, more usually to about 5,001; and

M is a DNA nucleotide sequence of 12 to 150 nt, usually 18 to 150 nt, more usually not more than about 90 nt, which may encode any amino acid sequence, usually encoding a functional sequence which provides for a natural or synthetic sequence resulting in a biological or chemical function or activity;

m and n are the same or different, being 0 to 3, usually 0 to 2, depending on whether a functional group is present in the polymer, usually being 1 to 2, where different, the same or similar functional groups may be combined in a contiguous manner.

X may be the same as or different from W, usually different, and will have the formula

     A.sup.1).sub.n 1(B.sup.1).sub.p 1!.sub.q 1

wherein:

A¹, B¹, n¹, p¹ and q¹ are the same as or different from A, B, n, p and q respectively, at least one being different, wherein the analogous symbols come within the same definition as their counterparts;

x is 0 or 1;

N is the same as or different from and comes within the same definition as M;

Y may be the same as or different from W, usually different, and will have the formula

     A.sup.2).sub.n 2(B.sup.2).sub.p 2!q2

wherein:

A², B², n², p² and q² are the same as or different from A, B, n, p and q respectively, at least one being different, wherein the analogous symbols come within the same definitions as their counterparts.

y is 0 or 1;

L may be the same or different from K, coming within the definition of K, but lacking the initiation methionine codon;

1 is 0 or 1;

i is 1 to 100, usually 1 to 50, more usually 1 to 30, particularly 1, when x and y are 0;

when x or y are 1, q, q¹ and q² will be a total of at least 2, usually at least 5 and not more than about 50, usually not more than about 33.

The total number of nucleotides will be at least 90 nucleotides, usually at least about 150 nt, preferably at least about 900 nt and may be 20 knt (kilonucleotides), usually not more than about 15 knt, more usually not more than about 10 knt.

The polypeptide encoded by the above DNA sequence will have the following formula:

    K.sub.k '(W'M'X.sub.x 'N'Y.sub.y ')i L.sub.l '

wherein:

W' will have the following formula

     (D).sub.n (E).sub.p !.sub.q

wherein:

D is the amino acid sequence encoded for by A and therefore has the numerical limitations based on 3 nucleotides defining a codon that codes for one amino acid;

E is the amino acid sequence encoded for by B, and therefore has the numerical limitations based on 3 nucleotides defining a codon, where each E may be the same or different, depending upon the coding of B;

and, wherein, likewise each of K', W', M', X', N', Y' and L' is the amino acid sequence encoded for by K, W, M, X, N, Y and L respectively. However, in the case of K and L, subsequent processing, such as protease treatment, cyanogen bromide treatment, etc. may result in partial or complete removal of the N- or C-terminal non-multimeric chains.

n, p, q, k, i and 1 have the same definitions as previously indicated.

Particular polymeric compositions having repeating multimeric units having the same compositions (A) will have the following formula where x and y are 0,

    K.sub.k ' (D).sub.n (E).sub.p !.sub.q L.sub.l

where all of the symbols have been defined previously; and

the DNA sequence will have the formula

    K.sub.k  (A).sub.n (B).sub.p !.sub.q L.sub.1

where all of the symbols have been defined previously.

Particular DNA sequences encoding copolymeric compositions having a repeating unit of two to three multimeric blocks will have the following formula:

    K.sub.k (W"M"X.sub.x "N"Y.sub.y ").sub.i" L.sub.l

wherein:

W" is a multimer having the formula

     (A.sup.3).sub.n 3(B.sup.3).sub.p 3!.sub.q 3,

where A³ is of 3 to 8, usually 4 to 8 codons, otherwise coming within the definition of A;

n³ will be from about 2 to 12, usually 2 to 10;

B³ is of from 2 to 8, usually 4 to 6 codons;

p³ is 0 or 1;

q³ is of from about 2 to 25, usually 2 to 20;

X" and Y" are the same as or different from W", usually different, coming within the same definitions as W";

M" and N" come within the definitions of M' and N';

i" is at least 2, usually at least 5 and not more than about 75, usually not more than about 50, generally not exceeding 30;

with the other symbols as defined previously.

Where there is only one multimeric type, a preferred formula will simplify to the following formula:

    K*.sub.k* (W*(M*).sub.m*).sub.i* L*.sub.l*

wherein:

K* is a DNA sequence encoding an amino acid sequence of from about 1 to 125 amino acids, usually 1 to 60 amino acids, which may be any sequence, generally being fewer than about 20% of the total number of amino acids, more generally being fewer than about 10% of the total number of amino acids, particularly a naturally occurring sequence where the multimer structural gene has been fused to another DNA sequence in reading frame. K*, if present, will have the initiation methionine codon;

k* is 0 or 1;

W* has the formula:

     (A*).sub.n *(B*).sub.p *!.sub.q *

wherein:

A* is a DNA sequence coding each time that it appears for the same amino acid sequence unit, normally having at least one amino acid appear at least twice in the sequence, where A will generally be at least from about 9 nucleotides (nt) usually from about 9 or 12 to 90 nt, more usually from about 9 or 12 to 75 nt, preferably from about 9 or 12 to 27 nt;

The A*'s may be the same or different; conveniently there may be two different A*'s, usually not more than six different A's, which code for the same amino acid sequence but differ from each other by at least one nucleotide and may differ by as many as ten nucleotides, usually not differing by more than about five nucleotides from another A* sequence, each of the different A*'s usually being repeated at least twice; in some instances it may be advantageous to have two different codons employed for the same amino acid, e.g., GGC and GGA for glycine, in the same unit;

n* will be an integer of at least 2, usually at least about 4, and not more than about 50, usually not more than about 40, frequently not more than about 35, and in some instances may not exceed about 10;

B* is a DNA sequence different from A coding for an amino acid sequence other than the amino acid sequence unit coded by the A* unit and serves as a linking unit between oligomers of A* units. B* will generally have from about 3 to 45 nt (1 to 15 amino acids), more usually from about 3 to 30 nt (1 to 10 amino acids);

where the B* units appearing in the gene may be the same or different, there usually not being more than about 10 different B* units, more usually not more than about 5 different B* units, where the B units may differ in from 1 to 45 nt, more usually from about 1 to 15 nt, where the different B*'s may code for the same or different amino acid sequence;

p* is 0 or 1 and may differ each time there is a successive (A*)_(n) * unit;

q* is an integer of at least 1 and will vary with the number of nucleotides in A* and B*, as well as the values of n* and p*. The variable q* will be selected so as to provide for at least 90 nucleotides for the strand, preferably at least about 150 nt, and not more than about 600 nt, usually not more than about 501 nt;

M* is a nucleotide sequence of at least 12 nt, usually at least about 18 nt and not more than about 150 nt, usually not more than about 90 nt, usually in the range of about 12 to 90 nt;

m* is 1 to 3, usually 1 to 2, wherein the m*s may be the same of different;

i* is at least 2 and not more than 100, usually not more than about 50, preferably at least about 3 and not more than about 30;

for each i*th unit, m* is 0 or an integer as indicated above, being at least an integer for at least 1 unit, so that the total number of m*'s varies from 1 to i;

L* comes within the definition of K*, except that L* will not have the initiation methionine codon;

1* is 0 or 1.

The total number of nucleotides will be at least 150 nt usually at least 900 nt, and not more than about 10,002 nt, usually not more than about 5,001 nt.

The polypeptide encoded by the above DNA sequence will have the following formula:

    K**.sub.k *(W**(M**.sub.m *)).sub.i * L**.sub.l *

wherein:

W** will have the following formula:

     (D*).sub.n *(E*).sub.p *!.sub.q *

wherein:

D* is the amino acid sequence encoded for by A* and therefore has the numerical limitations based on 3 nucleotides defining a codon that codes for one amino acid;

E* is the amino acid sequence encoded for by B*, and therefore has the numerical limitations based on 3 nucleotides defining a codon, where each E* may be the same or different, depending upon the coding of B*;

K**, L** and M** are the amino acid sequences encoded for by K*, L* and M*, and therefore have the numerical limitations based on 3 nucleotides defining a codon that codes for one amino acid; K** is of from 1 to 125 amino acids, optionally including the initiation methionine, while L** is of from 1 to 125 amino acids, and M** is of from 3 to 50 amino acids, particularly including a naturally occurring sequence; and

k*, 1*, m*, i*, n*, p* and q* have already been defined.

The compositions of the invention will usually have a molecular weight of at least about 3 kDal, usually 5 kDal, frequently at least 15 kDal and may have molecular weights as high or higher than 500 kDal, usually not exceeding 300 kDal, more usually not exceeding about 250 kDal. The composition will be substantially homogeneous, with each of the molecules of the same molecular weight and chain length.

Copolymers may be prepared, particularly block copolymers. The copolymers may provide a variety of advantages in providing greater flexibility in controlling polymer chemical and physical e.g., mechanical, properties, introduce compatible functions, and produce unique chemical and physical properties due to interactions between the different repeating units.

Usually combinations of multimers will be used, e.g., ((A^(a))_(n) (B^(b))_(p))_(q), where the symbols A, B, n, p and q are as previously defined and a and b indicate that different multimers are involved, where a and b are in the range of 1 to 3, where a and b are equal to the same number. This intends that A¹ and B¹ are associated, as are each of the other A's and B's and A1 refers to a sequence which may be the same or different from A² but (A²)_(n) (B²)_(p) is different from (A2)n(B2)q

Combinations include using hard and soft groups to enhance flexibility, combining silk and elastin multimers, providing for changes in the structural properties of collagen, by introducing an adhesion-like protein to provide strong bonding to a surface, or the like.

Copolymers will usually be at least about 5 kDal, more usually 10 kDal, usually not more than about 500 kDal, more usually not more than 300 kDal.

The unaligned sequence may be the same or different within a multimer or the same or different unaligned sequences in the different multimers.

The nucleotide sequences which are employed will be synthesized, so that the repetitive units may have different codons for the same amino acid as described above. Usually, at least about 25%, more usually at least about 40%, and generally at least about 60%, but not greater than about 95%, preferably not greater than about 90% of the nucleotide sequences encoding the repetitive units will be the same. Greater diversity within those ranges will be employed where the initial constructs are experimentally shown to undergo spontaneous recombination events.

Various natural proteins have repeating structures, such as collagen with a G-X-Y (wherein X equals any amino acid, often ala or pro, and Y equals any amino acid, often pro or hydroxy-pro) repeating unit, elastin with VPGG (SEQ ID NO:1), VPGVG (SEQ ID NO:2), and/or APGVGV (SEQ ID NO:03) units, keratin with a so called "heptad" repeat unit consisting of a seven amino acid oligopeptide with two positions separated by two amino acids, usually positions three and six, occupied consistently with hydrophobic aliphatic or aromatic residues, e.g., AKLKLAE (SEQ ID NO:04) or AKLELAE (SEQ ID NO:05), and mussel adhesive with a decapeptide or hexadecapeptide coming within the sequence A-K-P-P*-S-T-Y-X-P-P*-P-S-T-Y-X-K (SEQ ID NO:06) (P* is hydroxyproline and X is an aromatic amino acid, particularly L-dopa; see U.S. Pat. Nos. 4,585,585 and 4,687,740). The repeating units may be used individually or in combination, where individual units may alternate in a particular pattern or individual strands may be provided.

Of particular interest are polypeptides which have as a repeating unit SGAGAG (SEQ ID NO:07) (G=glycine; A=alanine; S=serine). This repeating unit is found in a naturally occurring silk fibroin protein, which can be represented as GAGAG(SGAGAG)₈ SGAAGY (SEQ ID NO:08) (Y=tyrosine).

Also of interest are polypeptides which have as a repeating unit.

K-L-(1)-L-A-E-A (SEQ ID NO:09)

where 1 is a basic or acidic amino acid, particularly K or E and the repeating units alternate as to whether 1 is a basic or acidic amino acid. This structure is commonly found in keratin.

For the intervening oligomers or turns between the strands, various sequences may be used, depending upon the desired purpose of the polymer. Thus, the intervening sequence may be unaligned, flexible, accessible, functional or combinations thereof. Thus, the intervening sequence in association with the strand sequence can be designed to provide a wide variety of products which may be formed, fabricated, extruded, spun, woven, coated, or the like. The intervening sequence may provide for a ligand, which may serve to bind to antibodies, naturally occurring receptors, non-amino-acid molecules, or the like. In this way, the polymeric structures may be used to specifically bind a wide variety of molecules serving as affinity columns, use in diagnosis, sensors, cell separation, device coatings having, for example, antithrombogenic properties, cell substrates, and the like.

The intervening sequence may provide chemically active amino acids for chemical crosslink sites, which may serve to covalently attach functional peptides, synthetic or natural polymers or proteins, non-amino acid molecules, and the like. The intervening sequence may be a naturally occurring sequence or a modified naturally occurring sequence. Naturally occurring sequences may be derived from a wide variety of sources with a variety of functions. Such sequences may be a cellular growth inhibitor sequence, e.g., from tenascin (Chiquet-Ehrismann et al., (1988) Cell 53:383-390); cell growth promoting attachment factors, e.g., from fibronectin, -RGD-,-REDV- (Humphries et al., (1988) J. Cell Biol. 103:2637-2647), vitronectin, -RGD (Suzuki et al., (1985) EMBO J. 4:2519-2524), collagen, -RGD-, and as described in WO 89/03392, laminin B1 -YIGSR- (Graf et al., (1987) Cell 48:989-996), bacterial adhesive, -SLF-, -ALF-; (Jacobs et al., (1987) J. Bacteriology 1691:735-741), growth hormones and insulin; inclusion sequences (GAGC and GCCV, which provide systems for attachment and cross-linking; VSPD, VCDP and DPGK, which provide an unaligned structure); cellular function activators, such as major histocompatibility complex antigens, Class I and II, particularly the α_(l), α₂, β_(l) and β₂ regions, e.g., HLA-A2 amino acids 50-80 and 140-170 (Bjorkman et al., (1987) Nature 329:512-518) and HLA-D amino acids 1-90 (Todd et al., (1988) Science 240:1003-1009); growth factor domains, e.g., EGF, TGF and VGF, IL-1-10, particularly -2, -3 and -4, and erythropoietin; viral attachment sequences, such as human CD4 amino acids 35-60 (Clayton et al., (1988) Nature 335:363-366) and 70-95 (Lifson et al., (1988) Science 241:712-716); sequences which promote the binding of non-protein molecules, such as the heparin binding domain of vitronectin, metal binding domains, e.g., metallothioneins, H-H, H-C-C-H (SEQ ID NO:10) and C-H-H-C (SEQ ID NO:11), etc. glucose and other sugar binding domains, e.g., lectins, B chains of toxins, such as abrin, ricin, diphtheria toxin, safratoxin, or fragments thereof, etc.; drug or toxin binding domains for detoxification; and chemically active amino acids or amino acid sequences for post-translational modifications, such as N-X-S for N-linked glycosylation and the amino acids, C, M, H, K, R, D, E, W, P, Y, N and Q for chemical modification.

Sequences of specific interest as intervening sequences include:

D P G K G X Y (SEQ ID NO:12) wherein at least one of X and Y is C;

E P G Y I G S R C D A G Y; (SEQ ID NO:13)

P K G D R G D A G P K; (SEQ ID NO:14)

A V T G R G D S P A S; (SEQ ID NO:15)

G R G G S F G G S S Y G G G S; (SEQ ID NO:16)

G A G C G D P G K G C C V A; (SEQ ID NO:17)

V C D R G Y I G S R C D; and (SEQ ID NO:18)

P K G D R A D A G P K; (SEQ ID NO:19)

where conservative substitutions may be made other than at the functional site.

For the cysteine product it will be desirable to have two or three cysteines in a multimer unit, preferably having a cysteine proximal to each end of the multimer unit. For chemical cleavage the dipeptide DP or EP is desirable.

Other sequences of interest may be epitopes of microorganisms, e.g., virus, bacteria, fungi and protozoa, phosphorylation sites, peptidase recognition sites or the like.

The use of genetic engineering in the preparation of copolymers involving repeating units with intervening sequences is a powerful method for varying properties, by appropriate choice of the different units, the number of units in each multimer, the spacing between them, and the number of repeats of the multimer combination assembly. Thus, by varying the number and arrangement of the primary multimers, a variety of different physical and chemical properties can be achieved.

Exemplary of the use of the block copolymers are combinations of silk units and elastin units to provide products having properties distinctive from polymers only having the same monomeric unit.

To prepare the structural genes, various approaches can be employed. To prepare the oligomers, complementary strands of DNA may be synthesized, so that upon hybridization double-stranded DNA is obtained with the appropriate termini. If desired, each of the oligomeric units may be the same, so that in a single step, a concatemer may be obtained depending upon the conditions of the hybridization. Normally, conventional annealing and ligating conditions will be employed, such as are described in the examples that follow.

If desired, two different oligomeric units may be prepared where the termini of the two units are complementary one with the other, but the termini of the same unit are unable to bind together. In this way one can build individual oligomeric units and then join them together to form the concatemer, where the intervening linking sequences are defined at least in part by the termini. Depending upon the construct, the 5' terminus may provide for the initiation codon methionine, or the structural gene may be joined to an adapter which may provide for a unique sequence (optionally cleavable by enzymatic or chemical treatment) at the 5' terminus or may be inserted into a portion of a gene, usually endogenous to the host, in proper reading frame so as to provide for a fusion product. By providing for appropriate complementary termini between the adapter or truncated gene and the 5' end of the subject structural gene, the sequences can be joined in proper reading frame to provide for the desired protein. Advantages that may be achieved by employing adapters or fusion proteins include having specific sequences for special purposes, such as linking, secretion, complex formation with other proteins, affinity purification, or the like. The 3' region may be similarly modified to provide analogous functions.

Once the structural gene has been assembled, it may be cloned; clones having the desired gene, particularly as to sequence length, may be isolated and the gene may be removed and used to join to a sequence for expression.

The expression construct will include transcriptional and translational initiation and termination regulatory regions, 5' and 3', respectively, of the structural gene. As already indicated, these regions may be created by employing a fusion protein, where the subject structural gene is inserted into a different structural gene downstream from its initiation codon and in reading frame with the initiation codon. Alternatively, various transcriptional and translational initiation regions are available from a wide variety of genes for use in expression hosts, so that these transcriptional and translational initiation regions may be joined to the subject structural gene to provide for transcriptional and translational initiation of the subject structural genes. A wide variety of termination regions are available which may be from the same gene as the transcriptional initiation region or from a different gene. Numerous constructs have been disclosed in the literature, and the same procedures may be applied with the subject gene as have been employed with other structural genes.

Of particular interest is the use of an inducible transcription initiation region. In this manner, the host strain may be grown to high density prior to significant expression of the desired product. Providing for inducible transcription is particularly useful where the peptide is retained in the cellular host rather than secreted by the host.

A number of inducible transcription initiation regions exist and can be employed in particular situations. The inducible regions may be controlled by a particular chemical, such as isopropyl thiogalactoside (IPTG) for inducing the beta-galactosidase gene. Other inducible regions include lambda left and right promoters; various amino acid polycistrons, e.g., histidine and tryptophan; temperature sensitive promoters; and regulatory genes, e.g., cI^(ts) 857.

An alternative system which may be employed with advantage is use of a combination of transcription initiation regions. A first transcription initiation region which regulates the expression of the desired gene but which is not functional in the expression host by failing to be functional with the endogenous RNA polymerase is employed. A second transcription initiation region, such as an inducible region, can then be employed to regulate the expression of an RNA polymerase with which the first transcriptional initiation region is functional. In this manner expression only occurs upon activation of the regulatory region controlling the expression of the exogenous RNA polymerase. This system may be illustrated with the T7 phage transcription initiation region, specifically the initiation regions of genes 9 and 10 of T7 phage.

An alternative system relies on the use of mutants which undergo a developmental change based on a change in the environment, such as a lack of a nutrient, temperature, osmotic pressure, salinity, or the like. Illustrative of this system, strains of B. subtilis can be obtained which are incapable of sporulation but which can produce those components which initiate expression of products involved with sporulation. Therefore, by a change in the condition of the medium, a transcription initiation region associated with sporulation will be activated. In this situation, the host provides the necessary inducing agent or activator to initiate expression.

Various other techniques exist for providing for inducible regulation of transcription and translation of a gene in a particular host.

For the most part, the host will be a unicellular organism, either a prokaryote or a eukaryote, selected from bacteria, algae, fungi, filamentous fungi, plant or animal tissue culture cells, etc. Illustrative hosts include E. coli, B. subtilis, B. stearothermophilus, S. cerevisiae, Aspergillus, Neurospora, Streptomyces, CHO cells, HeLa cells, etc. and the like. Alternatively, whole plants may be employed.

The expression construct for expression of the desired gene, by itself or in conjunction with any auxiliary genes involved with transcription, will normally be joined to an appropriate vector for introduction into the expression host. A large number of vectors are commercially available with others being described in the literature. The vectors are normally characterized by having one or more unique restriction sites, a replication system for extrachromosomal maintenance in the host, and one or more markers which allow for selective pressure on the host. The markers may provide complementation, prototrophy to an auxotrophic host, resistance to a biocide, e.g., an antibiotic such as penicillin or kanamycin, or the like. In some instances, rather than selective pressure, a marker gene is employed which allows for detection of particular colonies containing the gene. This situation is illustrated by the gene for beta-galactosidase, where a substrate is employed which provides for a colored product.

The expression construct, including any auxiliary genes, may be introduced into the expression vector in accordance with known techniques, particularly employing restriction, insertion, and ligation.

The expression construct may then be used for transformation of the appropriate host. Depending upon the host, either intact cells or protoplasts may be employed, where transformation or conjugation is employed. Conveniently, calcium phosphate precipitated DNA or non-ionic detergents may be employed to introduce the plasmid into the host. It should be appreciated that it is not necessary to employ vectors for host transformation, since bare DNA can be introduced for integration into the genome. However, even where integration is desired, a much greater efficiency of integration is achieved employing the vectors, thus favoring the employment of vectors.

Depending upon the nature of the vector, the expression construct may be maintained on an extrachromosomal element or become integrated into the host. Where integration is desired, it will usually be desirable with prokaryotes and some eukaryotes to have a sequence homologous to a sequence in the chromosome of the host. Usually the sequence will be at least about 200 bp and not more than about 5000 bp, usually not more than about 2000 bp. The choice of the homologous sequence is somewhat arbitrary, but may be used for complementation, where the host is an auxotrophic mutant and the homology provides prototrophy.

The transformants or integrants may then be grown in an appropriate nutrient medium to high density, followed by induction of transcription in accordance with the nature of the transcriptional system of the expression construct. Where the desired protein is retained in the cytoplasm, these cells are harvested and lysed, and, depending upon the use of the protein, the protein may be further purified in accordance with conventional techniques, such as chromatography, solvent extraction, affinity chromatography, centrifugal sedimentation, filtration and the like.

EXPERIMENTAL Example 1

DNA Preparation Methods

1. Preparation of plasmid DNA from E. coli.

A. Small scale. Plasmid DNA was prepared from 1.5 ml cultures by either the boiling procedure or the alkaline lysis method (Maniatis et al., Molecular Cloning: A Laboratory Manual. Cold Spring Harbor Laboratory, Cold Spring Harbor. (1982)).

B. Large scale. A plasmid-carrying strain was grown overnight in 1 liter of Luria broth with the appropriate antibiotic. The cells were collected by centrifugation at 10,000× g for 5 min and resuspended in 10 ml of ice cold TE (10 mM Tris-HCl pH 8, 1 mM EDTA). The cells were centrifuged again, resuspended in 4 ml of TES (TE and 25% w/v sucrose) and homogenized by vortexing. The samples were kept on ice for the following steps. Lysozyme (1 ml of 10 mg/ml) was added to the cell suspension and incubated for 5 min before the addition of 2 ml of 0.5 M EDTA pH 8. After 10 min incubation, 50 ml of proteinase K (40 mg/ml) were added followed 10 min later with 15 ml of lysing buffer (0.1% Triton X-100, 1 mM EDTA, 50 mM Tris-HCl pH 8). After 15-20 min, the cell lysate was centrifuged at 35,000× g for 90-120 min. The supernatant (19.8 ml) was transferred to a plastic tube with 20 μg of CsCl and 400 μl of ethidium bromide (10 mg/ml). After dissolution, the mixture was divided into two polyallomer ultracentrifuge tubes, sealed with heat and centrifuged in a Beckman Ti 65 motor at 60,000 rpm for 24 hr. The lower plasmid DNA band was removed from the tube with a hypodermic needle. The ethidium bromide was extracted three times with an equal volume of NaCl-saturated isopropanol. Two volumes of H₂ O were added to the DNA solution, and then the DNA was precipitated with ethanol.

2. Preparation of double-stranded DNA. A culture of JM103 was grown to an OD₆₀₀ of about 0.2 and then divided into aliquots of 2 ml. Each aliquot was infected with a fresh plaque of M13 and incubated at 37° C. for about 6 hr with vigorous shaking. Then the cells were pelleted and the supernatant was saved for subsequent infections. The double-stranded phage DNA was extracted by the boiling method (Maniatis et al.).

3. Deproteinization. Phenol extraction was performed on a convenient volume of DNA sample, typically between 100 μl to 10 ml. The DNA sample was diluted in 0.01 M TRIS-HCl pH 7.5, 1 mM EDTA and an equal volume of water-saturated phenol was added. The sample was vortexed briefly and placed on ice for 3 min. After centrifugation for 3 min in a microfuge, the aqueous layer was removed to a new tube and extracted once with an equal volume of chloroform:isoamylalcohol (24:1).

4. Ethanol precipitation. DNA in an aqueous buffer was concentrated by ethanol precipitation. To the DNA sample was added 1/10 volume of 3M sodium acetate pH 7.5 and 2-3 volumes of cold ethanol. The DNA was precipitated for 30 min at -70° C. or overnight at -20° C. and then pelleted by centrifugation in the microfuge for 15 min at 4° C. The pellet was washed once with 200 μl of cold 80% ethanol and pelleted again for 10 min at 4° C. After air drying or lyophilization, the pellets were resuspended in the appropriate buffer.

5. Phosphatase treatment of DNA. Phosphatase treatment of DNA was performed by adding 1 μl (25 units) of calf intestinal phosphatase (Boehringer Mannheim) directly to the restriction enzyme digestion reaction and continuing the incubation for 30 min at 37° C. The phosphatase was inactivated for 60 min at 65° C. prior to deproteinization by phenol extraction.

6. Fill-in reaction with DNA polymerase I. DNA was resuspended in buffer containing 50 mM Tris-HCl pH 7.4, 50 mM KCl, 5 mM MgCl₂, and 400 μM each of the four deoxynucleotide triphosphates. Ten units of Klenow DNA polymerase (BRL) were added, and the reaction was allowed to proceed for 15 min at room temperature. The DNA was then phenol extracted and ethanol precipitated.

7. T4 polynucleotide kinase reaction. The reaction (10 μl ) contained: T4 polynucleotide kinase (BRL), 150 ng of DNA, 1 μl of 10× kinase buffer (0.7M Tris-HCl pH 7.6, 0.1M MgCl₂, 50 mM DTT) and ³² P!-ATP (200-300 μCi). This was incubated at 37° C. for 30 min and then the DNA was purified using a NACS column (Bethesda Research Labs).

8. Digestion with restriction endonucleases. DNA was digested with restriction endonucleases (REN) in 1× "AA" buffer 10× AA buffer is 330 mM Tris-acetate, pH 7.9, 660 mM potassium acetate, 100 mM magnesium acetate, 50M dithiothreitol (DTT) and 1 mg/ml bovine serum albumin (nuclease free)!. Whenever possible, the concentration of DNA was kept below 1 μg/25 μl. Incubation was at 37° C. for 1-4 hrs for most restriction endonucleases except for BalI, BanI and NaeI digestions which were incubated overnight.

9. Analytical agarose gel electrophoresis of DNA. To DNA samples for gel analysis was added 0.2 volumes of loading buffer (5× electrophoresis buffer, 0.01% bromphenol blue dye, 50 mM EDTA, and 50% glycerol). Then the samples were loaded into lanes of a horizontal submerged electrophoresis unit containing a 1.0% (w/v) agarose gel. The electrophoresis buffer was either 1×TAC or 1/2×TBE. The 1×TAC is 40 mM Tris-base, 10 mM EDTA, adjusted to pH 7.8 with acetic acid. The 1/2× TBE is 0.045M Tris-base, 0.045M boric acid, 1 mM EDTA, pH 8. The gel was run at 40-50 V for 18 hr, then removed and stained with 0.5 g/ml ethidium bromide for 30 min. The DNA bands were visualized on a long wavelength UV transilluminator.

10. Preparative agarose gel electrophoresis. The procedures and materials are the same as for the analytical agarose gel electrophoresis. The only difference is the use of low melting point (LMD) agarose, ranging in concentration from 0.5 to 2.5% (w/v) depending on the size of the DNA fragment to be purified. DNA restriction fragments were excised from the LMP agarose gels after visualization with ethidium bromide.

11. NACS purification. Gel fragments containing DNA were melted at 70° C. for 5 min and diluted approximately 5 fold with TEl (10 mM Tris-HCl pH 7.5, 0.2M NaCl). The gel solution was applied to a NACS column (BRL). The column was washed with 5 ml of the same buffer. The bound DNA was eluted with 300 μl of either TE2 (10 mM Tris-HCl pH 7.5, 1.0M NaCl ) for DNA fragments smaller than 1000 bp or TE3 (10 mM Tris-HCl pH 7.5, 2M NaCl) for larger fragments. The eluted DNA was concentrated by ethanol precipitation.

12. DNA ligation. Reactions for ligating cohesive ends contained: 1 μg DNA, 1× AA buffer (see step 8, above) 1 mM ATP and 20 units of T4 DNA ligase (BRL) in a 20 μl final reaction volume. The ligation was allowed to proceed for 16-18 hr at 15° C. or 1-2 hr at room temperature. For blunt-ended ligations the reactions contained 1 μg DNA, 25 mM Tris-HCl pH 7.5, 5 mM MgCl₂, 5 mM DTT, 0.25 mM spermidine, 200 mg BSA, 1 mM hexamine cobalt chloride (HCC), 0.5M ATP and 400 units T4 DNA ligase (NEB) in a 20 μl reaction volume. The ligation was allowed to proceed for 30 min to 1 hr at room temperature.

Bacterial Transformation Methods

1. Preparation of transformation-competent E. coli cells. A culture of 200 ml of sterile L broth was inoculated with a small loopful of E. coli cells. This was incubated with shaking at 37° C. until the OD₆₀₀ was approximately 0.5. The culture was placed on ice for 10 min and centrifuged at 6,000× g for 10 min. The cell pellet was resuspended in 100 ml of ice-cold 0.1M MgCl₂, kept on ice for 30-40 min and centrifuged again. The pellet was resuspended in 2 ml of ice-cold 100 mM CaCl₂, transferred to a sterile test tube and incubated on ice for 24 hr. The competent cells were then aliquoted and stored at -70° C.

2. Transformation of E. coli. An aliquot of frozen competent cells were thawed on ice. To 50 μl of cells, 0.1 to 1 μg of DNA was added and the mixture was incubated on ice for 30 min. The tube was removed from ice and placed in a 42° C. bath for 2 min. L broth (1 ml) was added and the transformation mix incubated with shaking at the desired temperature (usually 30° C. or 37° C.) for 2 hr. Then one-tenth of the transformation was plated on L broth plates containing the appropriate antibiotic and, when necessary, XGAL and IPTG were added.

Antibody Production, Protein Chemistry and Electrophoresis of Proteins

1. Preparation of antibody to artificially synthesized Peptides. Synthetic peptide of sequence (GAGAGS)₈ GAAGY was coupled to BSA using the glutaraldehyde procedure of Kagen and Glick (1979) infra. The degree of coupling was monitored using trace amounts of radioactive iodinated synthetic peptide. Peptide conjugates at a concentration of 1 mg/ml in complete Freund's adjuvant were used to immunize rabbits at day 0. Animals were re-injected with antigen in Freund's incomplete adjuvant at day 30 and titered at day 60. Positive sera was detected using a microtiter RIA using the synthetic peptide as antigen. Kagen and Glick (1979), in Methods of Radioimmunoassay, Jaffe and Berman (eds.), Academic Press, p 328.

The synthetic peptide of 53 amino acids as described above was prepared on an Applied Biosystems peptide synthesizer. The yield of this material, which has a molecular weight of 3640 was approximately 0.5 grams. The peptide was coupled to bovine serum albumin. The material was sent to Antibodies, Inc. for preparation of antibodies in rabbits. Antisera was obtained that reacted with synthetic peptides of the SLPIII sequence. These antisera have been useful for the detection of fusion peptides containing gly-ala sequences.

Following the procedure described above two additional peptides were synthesized having the formula YTITVYAVTGRGDSPASSKPISINYC (SEQ ID NO:20) of fibronectin (the FCB portion) and the sequence (GAP GPP!₄)₂ (SEQ ID NO:21) (the repeat unit of the collagen-like protein ("CLP") portion), which were coupled to keyhole limpet hemocyanin for use as immunogens. Polyclonal antisera were then prepared as described above which bound to the FCB and CLP peptides, respectively.

2. Polyacrylamide gel electrophoresis of proteins. Approximately 10⁹ E. coli cells from growing cultures were pelleted by centrifugation at 10,000× g for 5 min. The cell pellets were resuspended in 100 to 500 μl of 2 X sample buffer (100 mM Tris-HCl pH 6.8, 4% SDS, 10% β-mercaptoethanol, 60% glycerol or sucrose) and sonicated for 30 sec using a Tekmar sonic disruptor. Samples were boiled for approximately 5 min and 20 to 100 μl of the cell lysates were loaded on an SDS-polyacrylamide gel (7.5 to 16% w/v). The gels were prepared following the procedure of Laemmli (Nature, 27:₋₋ 80-685 (1970)). The proteins in the gels were stained with 2% Coomassie brilliant blue in 10% methanol, 7.5% acetic acid for 1 hr and destained in 10% methanol, 7.5% acetic acid overnight.

3. Immunoblotting of proteins in gels. After protein electrophoresis, one of the flanking glass plates was removed from the polyacrylamide gel. The gel surface was wetted with transfer buffer (25 mM Tris-HCl, 192 mM glycine, 20% methanol). A piece of nitrocellulose paper (Sartorius, SM11307) was saturated with transfer buffer and laid on the gel. Air bubbles between the filter and the gel were removed. The gel and nitrocellullose filter were placed in the transfer unit as specified by manufacturer (Bio-Rad). Transfer was allowed to proceed at 200 mA for 3-4 hr. Then the nitrocellulose filter was removed and stained with Amido-Schwartz for 3 min (0.05% Amido black, 45% deionized H₂ O), 45% methanol, 10% acetic acid) and destained in H₂ O. The filter was incubated for at least 10 min at room temperature in "BLOTTO" (5% w/v nonfat dry milk, 50 mM Tris-HCl pH 7.4, 0.9% w/v NaCl, 0.2% w/v sodium azide). The filter was placed in serum appropriately diluted (1:50 to 1:500) in 0.5× Blotto (2.5% nonfat dry milk, 50 mM Tris-HCl pH 7.4, 0.9% NaCl, 0.2% sodium azide) and was gently agitated for approximately 16 hr at room temperature. The filter was washed for 1 hr with 5 changes of TSA (50 mM Tris-HCl pH 7.4, 0.9% NaCl, 0.2% sodium azide). The blot was placed in 15 ml of 0.5× BLOTTO solution containing 1×10⁷ cpm of the ¹²⁵ I -protein A and gently agitated for 2 hr at room temperature. The filter was washed for 2 hr with a minimum of 7 changes of TSA, rinsed once with deionized H₂ O and air dried. The blot was covered with Saran wrap and autoradiographed.

4. Amino Acid Analysis. Amino acid compositions are determined by the PTC derivatization procedure of Henrickson and Meredith (1984). Protein samples were hydrolysed with 5.7N constant boiling HCl at 108° C. for 24 hours in vacuo. After reaction with PITC, amino acid derivatives were detected at 254 nm by HPLC reverse phase chromatography using a Hewlett Packard 1090 or Waters 600E system and a Supelco C18 column (4.6 mm×25 cm) with a linear gradient of 0-50% acetonitrile in 0.1 M NH₄ OAc pH 6.78 as a mobile base. Henrickson, R. L. and Meredith, S. C. (1984) Amino Analysis by Reverse Phase High Performance Liquid Chromatography., Anal. Biochem. 137:65-74.

5. Amino Acid Sequence Analysis. The N-terminal amino acid sequence was determined by automated Edman degradation using an Applied Biosystems Model 470A gas phase protein sequenator. The PTH amino acid derivatives were analyzed by reverse phase HPLC using a Hewlett Packard 1090 or Waters 100E system and an Altex C18 column (2 mm×25 cm) with a complex gradient buffer system.

6. Peptide Synthesis. Synthetic peptides were prepared by solid phase synthesis on an Applied Biosystems Model 430A Peptide Synthesizer using the standard symmetric anhydride chemistry as provided by the manufacturer. The coupling yield at each step was determined by the quantitative ninhydrin procedure of Sarin et al., (1981). The synthetic peptide was cleaved from the solid support and amino acid blocking groups were removed using anhydrous HF (Stewart and Young, 1984). Crude peptides were desalted by chromatography over Sephadex G-50. Sarin, V. K., Kent, S. B. H., Tam, J. P. and Merrifield, R. B. (1981). Anal. Biochem. 237:927-936. Stewart, J. M. and Young, J. D. (1984). Solid Phase Peptide Synthesis, Pierce Chemical Company, Rockford, Ill. pp 85-89.

Synthetic DNA Methods

1. In vitro DNA synthesis. The N,N-diisopropylphosphoramidites, controlled-pore glass columns and all synthesis reagents were obtained from Applied Biosystems, Foster City, Calif.

Synthetic oligonucleotides were prepared by the phosphite triester method with an Applied Biosystems Model 380A or 381A DNA synthesizer using a 10-fold excess of protected phosphoramidites and 1 μmole of nucleotide bound to the synthesis support column. The chemistries used for synthesis are the standard protocols recommended for use with the synthesizer and have been described (Matteucci et al., J. Amer. Chem. Soc., 103:3185-3319 (1981)). Deprotection and cleavage of the oligomers from the solid support were performed according to standard procedures as described by McBride et al., Tetrahedron Letters, 24:245-248 (1983). The repetitive yield of the synthesis as measured by the optical density of the removed protecting group as recommended by Applied Biosystems (1984) was greater than 97.5%.

The crude oligonucleotide mixture was purified by preparative gel electrophoresis as described by the Applied Biosystems protocols of Nov. 9, 1984 (User Bulletin No. 13). The acrylamide gel concentration varied from 10 to 20% depending upon the length of the oligomer. The purified oligomer was identified by UV shadowing, excised from the gel and extracted by the crush and soak procedure (Smith, Methods in Enzymology, 65:371-379 (1980)).

2. Sequencing of DNA. DNA sequences were determined by the following methods. Fragments containing the region of interest were cloned into the multiple cloning site of M13mp18 or M13mp19 (Maniatis et al., 1982, and Norrander et al., 1983). Single-stranded DNA was prepared and sequenced by the primer extension method (Sanger et al., 1977 and Biggin et al., 1983) using ³⁵ -deoxyadenosine 5'-(alpha-thio)-triphosphate (New England Nuclear) as label. In some cases, reverse transcriptase (Molecular Genetics) was used to extend the primer, using the dideoxy:deoxynucleosidetri-phosphate ratios utilized by Zagursky et al. (Gene Anal. Tech. (1985) 2:89-94). Deoxyadenosine triphosphate labeled with either ³² P or ³⁵ S was used in these reactions. Compression artifacts which appeared in some G-C rich sequences were overcome by eliminating deoxyguanosine triphosphate from the G reaction, and using deoxyinosine triphosphate (P-L Biochemicals) at a final concentration of 37.5 μM instead. In the other mixes, the concentration of dideoxyGTP in the G reaction was 0.5 mM. All sequences were run on 6 or 8% polyacrylamide gels containing 8M urea (Sanger et al., 1978). Primers used for sequencing were purchased from P-L Biochemicals. Storage and analysis of data utilized software from both DNAstar and International Biotechnologies, Inc, for IBM personal computers and DNA Strider, DNA Inspector IIe or DNAid for Apple Macintosh personal computers.

Dideoxy DNA sequencing of double stranded plasmid DNA. Plasmid DNA was prepared as described previously (Preparation of plasmid DNA from E. coli, Small scale, Maniatis et al.). Primers were synthesized using a DNA synthesizer as described previously, and were annealed to the plasmid DNA following the procedure described above for M13 sequencing. The sequencing reactions were done using Sequenase (United States Biochemicals) and the conditions were as recommended by the supplier. All sequences were run on polyacrylamide gels as described above.

Fermentation Conditions

A wide variety of fermentors can be utilized, including, for example, a 15 liter Chemap, a 15 liter Braun, or a 15 liter MBR, all with a working volume of 10 liters, or a 2 liter MBR with a working volume of 1 liter The culture conditions are: temperature=30° C., pH=6.8; NaOH 2.5M or NH₄ OH (30% v/v) is used for pH regulation. The headspace pressure is below 0.3 bar. The dissolved oxygen is regulated at 50%. The air flow varies from 0.5 L/min to 20 L/min. The agitation rate varies between 200 to 1500 rpm.

The fermentor is inoculated with a 10% (v/v) inoculum grown in medium A for 15 hours at 30° C. under agitation.

Medium B, C or D is the fermentor medium. The starting volume in the case of a 10 liter fermentation, is no less than 3 liters, and in the case of a 1 liter fermentation, is no less than 0.5 liters.

If the fermentor starting volume is less than the final volume desired, then when the carbon source concentration reaches 1%, a concentrated solution (5×) of medium B, C or D, respectively, is added to the fermentor in order to keep the carbon source concentration approximately at 1%. When the culture reaches an OD₆₀₀ of 60.0, the temperature is increased to 42° C. for at least 10 min and not more than 30 min, then lowered to 39° C. or 40° C. for 2.5 hours. The cells are then harvested by centrifugation and frozen at either -20° or -70° C. until processed.

                  TABLE 1     ______________________________________     Constituent            q/L     ______________________________________     Medium A: LB Medium     NaCl                   10     tryptone               10     yeast extract          5     kanamycin or ampicillin                            5 × 10.sup.-3     Medium B     NH.sub.4 Cl            4.5     KH.sub.2 P0.sub.4 0    0.76     MgSO.sub.4.7H.sub.2 O  0.18     K.sub.2 SO.sub.4       0.09     CaCl.sub.2             24 × 10.sup.-3     FeSO.sub.4.7H.sub.2 0  7.6 × 10.sup.-3     Trace Elements         0.5 ml     casamino acids         25     yeast extract          5     glucose or glycerol    20     kanamycin or ampicillin                            5 × 10.sup.-3     Medium D     (NH.sub.4)SO.sub.4     5.6     K.sub.2 HPO.sub.4      6.7     MgSO.sub.4.7H.sub.2 O  7.8     NaH.sub.2 PO.sub.4.H.sub.2 O                            3.8     EDTA                   0.98     Trace Elements         1 ml     yeast extract or NZ Amine                            50     glucose or glycerol    20     kanamycin or ampicillin                            5 × 10.sup.-3     ______________________________________

Example 2

Assembly and Expression of the SLPIII Gene

1. Summary of the scheme for assembling the SLPIII gene. SLPIII closely resembles the silk fibroin molecule because it includes the amino acid tyrosine at regular intervals (about 60 residues). The SLPIII gene was assembled from smaller parts. First, three doublestranded sections of DNA of about 60 bp in length were chemically synthesized. Each section was cloned by insertion into bacteriophage M13 and the DNA sequence was verified. These sections were then removed from the vector and linked together in a specific order. This linkage of about 180 bp is named the SLPIII "monomer". "Monomers" were then linked in a specific order to yield dimers, trimers, tetramers, etc., of SLPIII. The multimers were then cloned either directly into plasmid expression vectors to detect the SLPIII protein or initially into an adapter plasmid. Insertion of the SLPIII DNA into the adapter allows for further gene manipulation and is further described later. The assembly scheme is pictured as follows:

Synthesis of double-stranded DNA sections ##STR1##

The DNA and corresponding amino acid sequences of the three sections of the SLPIII gene are shown in the following Table 1.

                                      TABLE 1     __________________________________________________________________________     GGT GCC GGC AGC GGT GCA GGA GCC GGT TCT GGA GCT     CCA CGG CCG TCG CCA CGT CCT CGG CCA AGA CCT CGA     G   A   G   S   G   A   G   A   G   S   G   A     GGC GCG GGC TCT GGC GCG GGC GCA G(SEQ ID NO:22)     CCG CGC CCG AGA CCG CGC CCG CGT CCT AG(SEQ ID NO:23)     G   A   G   S   G   A   G   A   G   S(SEQ ID NO:24)     GA  TCC GGC GCA GGC GCT GGT TCT GGC GCA GGG GCA          G  CCG CGT CCG CGA CCA AGA CCG CGT CCC CGT     G   S   G   A   G   A   G   S   G   A   G   A     GGC TCT GGC GCA GGA GCG GGG TCT GGA GCT GCA(SEQ ID NO:25)     CCG AGA CCG CGT CCT CGC CCC AGA CCT CG(SEQ ID NO:26)     G   S   G   A   G   A   G   S   G   A   A(SEQ ID NO:27)             GGC TAT GGA GCT GGC GCT GGC TCA GGT GCT      A  CGT CCG ATA CCT CGA CCG CGA CCG AGT CCA CGA         A   G   Y   G   A   G   A   G   S   G   A     GGA GCA GGA AGC GGA GCG GGT GCC A(SEQ ID NO:28)     CCT CGT CCT TCG CCT CGC CCA CGG TTC GA(SEQ ID NO:29)     G   A   G   S   G   A   G   A(SEQ ID NO:30)     __________________________________________________________________________

The double-stranded DNA sequence is shown in the 5' to 3' direction. The amino acids (g=glycine, a=alanine, s=serine, y=tyrosine) coded by the sequence are shown immediately below each section.

The above six single-strands were synthesized. After synthesis, the strands of DNA were purified and the homologous strands were annealed. About L μl (0.5 μg) of each strand was mixed with 2 μl of 10 × AA (10× AA defined in Example 1, section 8), buffer and 16 μl of sterilized deionized H₂ O in a 1.5 ml polypropylene Eppendorf tube. The tube was placed in a boiling water bath (500 ml in a 1 liter beaker) for 10 min and then the beaker was removed from the hot plate and allowed to cool on the bench to room temperature. This required about 1-2 hr.

Each of the three double-stranded sections was cloned separately into M13mp18. Section 1 was ligated between the SmaI and BamHI restriction sites of the multiple-cloning site. Section 2 was ligated between the BamHI and PstI sites. And section 3 was inserted between the PstI and HindIII sites. The respective clones are: M13mp18.1, M13mp18.2, M13mp18.3. The DNA sequence was determined for each cloned section. One representative of each section that had the correct DNA sequence was recovered and became the material for the next step: assembly of the "monomer".

2. Assembly of the "monomer" of SLPIII. The DNA sections 2 and 3 were isolated by digestion of the M13 clones with restriction enzymes: for section 2, M13mp18.2 was digested with BamHI and Pst1; for section 3, M13mp18.3 was digested with Pstl and HindIII. The two sections were purified and mixed together in equal molar amounts with M13mp18.1 that had been first digested with BamHI and HindIII. T₄ DNA ligase was added to link the homologous overlapping ends in the order 1-2-3. Due to the hybridization specificity of the cohesive ends, the three sections are efficiently linked in only this order. The DNA sequence of the cloned "monomer" in the assembly named M13mp18.1.2.3 was determined to be correct and as shown in Table 1 above.

3. Multimerization of the "monomer" of SLPIII. In order to prepare large amounts of the "monomer" structural gene we first subcloned the "monomer" into the plasmid vector pUC12. M13mp18.1.2.3 was digested with EcoRI and HindIII restriction enzymes. The SLPIII "monomer" was gel purified and ligated into pUC12 digested with EcoRI and HindIII. The resulting plasmid DNA was prepared, the "monomer" was released from the vector by digestion with BanI REN and the fragment was gel purified.

To create multimers, "monomer" DNA with BanI ends were linked by ligation. The nonpalindromic terminal BanI recognition sequence allows linkage only in a head-to-tail order. The extent of multimerization is monitored by gel electrophoresis and staining the DNA with ethidium bromide. Multimers of more than 20 units were obtained by this method.

4. Cloning of the multimers of SLPIII. Plasmid pCQV2 (Queen et al., J. Appl. Mol. Gen.,2:1-10 (1983)) was digested with EcoRI and BamHI restriction endonucleases and a fragment of about 900 bp was purified. This DNA fragment contains the bacteriophage lambda cI-857 repressor gene, the closely linked rightward promoter, P_(R), and the beginning of the cro gene. Plasmid pSY335 (described as pJF751 in Ferrari et al., J. Bacteriology, 161:556-562 (1985)) was digested with EcoRI and BamHI restriction enzymes and subsequently ligated to the DNA fragment of approximately 900 bp of pCQV2. The plasmid obtained from this construction, pSY751, expresses the β-galactosidase gene at 37° C. and 42° C., but not at 30° C.

In this approach the SLPIII gene is first cloned into an "adapter" sequence in an intermediate plasmid and then subcloned to the expression systems. The adapter sequence has the following useful features: a unique central BanI REN site, three unique REN sites to either side of BanI, information coding for protein cleavage at either methionine, aspartate-proline or arginine amino acids and small size. The BanI site is the point of insertion for the SLPIII multimers with BanI ends.

The adapter was synthesized with the Applied Biosystems 380A Synthesizer, cloned in M13mp18 and the DNA sequence verified. The adapter was then subcloned into a specially-constructed plasmid vector that lacked BanI REN sites. The recipient plasmid was made as follows. Plasmid pJH101 (Ferrari et al., 1983) was partially digested with AhaIII restriction enzyme and religated. Transformants of E. coli HB101 were selected on medium containing chloramphenicol (12.5 mg/ml). After restriction analysis of several isolates one plasmid was chosen, pSY325. This plasmid contains only the chloramphenicol-resistance gene and the replication origin (from pBR322) of pJH101. After digestion to completion with XhoII, pSY325 was ligated with the gel-purified adapter. The result was the adapter-plasmid, pSY937, and its new REN sites were verified.

The SLPIII multimers were cloned into the BanI site of pSY937. Positive clones were identified by colony hybridization and with the lower strand of section 1 of SLPIII as the DNA probe for hybridization (probe sequence shown in Table 1). Positive clones were characterized by gel electrophoresis for the size of the inserted multimer. Finally, the SLPIII sequences were subcloned using the REN site in the flanking adapter regions to specific locations of expression plasmids.

The SLPIII protein had the following amino acid composition:

    __________________________________________________________________________     SLPIII     1178 AA     MW 83,000     (fm)         DPVVLQRRDWENPGVTQLNRLAAHPPFASDPM         GAGS (GAGAGS).sub.6 GAAGY          (GAGAGS).sub.9 GAAGY!.sub.18         GAGAGSGAGAGSGAGAMDPGRYQLSAGRYHYQLVWCQK     (SEQ ID NO:31)     (fm) intends the initiation codon     __________________________________________________________________________

SLPIII Expression Vector

Plasmid DNA pSY1086 is a pSY937 derivative containing 19 repeats of SLPIII (3.5 kb). This plasmid DNA was digested with NruI and PvuII and the fragments separated by agarose gel electrophoresis. The purified SLPIII multimer was then cloned in plasmid pSY751 digested with PvuII REN. Several clones were analyzed and one (pSY1008) was chosen to be used in expression experiments and SLPIII purification.

The ampicillin drug resistance gene of pSY1008 was substituted with the kanamycin marker from pSY1010 (produced by digestion of pSY633 with DraI and SspI and insertion of Kan^(R) obtained by HincII digestion of pUC4K) and the subsequent plasmid was called pSY1186. By removing the SLPIII portion of plasmid pSY1186 with BanI, a new plasmid, pSY1262, was generated. This plasmid contains a unique BanI site which allows for the direct ligation of fragments containing BanI ends obtained by polymerization of monomers. This plasmid has been used to generate plasmids containing inserts for the following proteins: SELP1, 2, 3, and SLP4.

Production and Purification of SLPIII

Cell Culture. E. coli are cultured in one of the following media:

    ______________________________________     Medium C     Constituent        g/l     ______________________________________     yeast extract      20     casamino acids     20     peptone            20     gelatin peptone    20     KH.sub.2 PO.sub.4  2     K.sub.2 HP0.sub.4  2     Na.sub.2 HP0.sub.4 7H.sub.2 0                        2     glucose or glycerol                        2     kanamycin or ampicillin                        0.1     ______________________________________

An overnight culture (500 ml-1 L) which had been grown at 30° C. was used to inoculate 375 L of media contained in a 500 L fermentor. Fermentor conditions include a tachometer reading of 100 rpm, vessel back pressure of 5 psi and an air flow of 170 1/min in order to maintain dissolved 02 at greater than 50%.

Glucose (1 gm/l ) and ampicillin (0.05 g/l) were added to the fermentation when the culture reached an OD₆₅₀ of 1.0 and again at 2.0. When the culture reached an OD₆₅₀ of 2.0 the temperature was increased to 42° C. for 10 min and then lowered to 38° C. for 2 hours. The culture was then chilled to 10° C. and cells were harvested by centrifugation in a continuous centrifuge and frozen at -70° C. until processed. Yields from two separate fermentations were 7.3 kg and 5.2 kg wet weight of cells.

It should be noted that other media can be used and, with different plasmids, various selection conditions can be imposed (i.e., substitution of kanamycin selection for ampicillin). These conditions have been used in laboratory scale fermentations (10 L volumes).

Cell Lysis.

Method 1. Cells are thawed and suspended to a concentration of 1 kg wet weight/6 1 in 50 mM Tris-HCl pH 7.0, 1 mM EDTA and broken by 2 passages through an APV Gaulin cell disrupter at 8000 psi. During this lysis procedure the cells are kept cold with an ice bath. The cell lysate is then centrifuged at 26,000× g with a continuous centrifuge, such as the TZ-28 rotor in a Sorvall RC5B refrigerated centrifuge operated at 4° C. Under these conditions greater than 90% of the SLPIII produced can be found in the pellet. The supernate does contain some product which can be recovered by NH₄ SO₄ precipitation as described below. The pellet is extracted with LiBr as described below.

Method 2. Frozen cells are thawed and resuspended to a concentration of 1 kg wet weight/6 1 in 50 mM Tris-HCl pH 7.0, 10 mM EDTA, and 5 mM PMSF to inhibit protease activity. Cells are stirred in this buffer at room temperature for 0.5 to 2 hours, then lysozyme is added to a concentration of 1 g/l and incubation is continued for 20 min. β-Mercaptoethanol is then added to 70 mM and the detergent NP40 is then added to a final concentration of 1% for 20 min while continuously stirring the cell suspension. The MgCl₂ is added to 50 mM followed by DNAse at a concentration of 1 mg/l and incubation is continued at room temperature for 20 min. The cell lysate is then centrifuged as in method 1 at 26,000× g in a continuous centrifuge and the supernatant is collected and passed through the continuous centrifuge a second time at 26,000× g. The supernate resulting from this second centrifugation contains <5% of the total SLPIII, but what is there can be recovered with NH₄ SO₄ as described below. The pellets resulting from the 1st and 2nd 26,000× g centrifugations are combined and extracted with LiBr as described below.

Method 3. For this method, a strain of E. coli is used that contains a second plasmid which encodes the T7 phage lysozyme. This plasmid is compatible with the plasmid encoding the SLPIII gene and the drug resistance determinant. The strain is grown in the same medium and under the same conditions as in the first two methods. However, due to the production of the T7 lysozyme inside the cells, their cell wall is weakened and they can be easily lysed at the completion of the fermentation by the addition of EDTA to >100 mM and NP40 to a concentration of from 0.5 to 1.0% v/v. Lysis can also be achieved by the addition of chloroform (20 ml per liter) of fermentation broth instead of NP40. Alternatively, cells may be collected by centrifugation prior to lysis, resuspended to 1 kg wet weight/6 1 in Tris-EDTA as described in the first two methods and then lysed by the addition of NP40 or chloroform. Following cell lysis by either method, the lysate is centrifuged in a continuous rotor at 26,000× g as described in the first two methods. As with those methods, LiBr extraction of the pellet and NH₄ SO₄ precipitation of the supernate are used to recover the product.

Purification of SLPIII

The pellet obtained by centrifugation of the cell lysate at 26,000× g as described above is extracted with an equal volume of 9M LiBr. The salt solution is added and the pellet is evenly suspended by stirring at room temperature (RT). The mixture is stirred for 1 hour at RT after an even suspension is obtained. The mixture is then centrifuged at 26000× g in a continuous rotor at 4° C. or at RT to generate a pellet and a supernatant fraction. The supernate is saved and the pellet is re-extracted with another equal volume of 9M LiBr as above. After mixing for 1 hour, the mixture is centrifuged at 26,000× g and the supernate from this centrifugation is combined with the supernate from the first LiBr extraction and allowed to stand at 4° C. overnight. Approximately 90% of the SLPIII contained in the cell lysate 26,000× g pellet is extracted by LiBr using this procedure.

After the LiBr extract stands overnight at 4° C. a precipitate forms, which is removed by centrifugation at 26,000× g and is discarded. The supernate is then placed in dialysis bags and dialyzed against several changes of dH₂ O for 2 days. As the LiBr is removed by dialysis the SLPIII product precipitates in the dialysis bags. The precipitate is collected by centrifugation and washed 2 to 3 times with dH₂ O. The final washed product is centrifuged and dried by lyophilization.

For the recovery of SLPIII from the 26,000× g supernatant fractions, NH₄ SO₄ precipitation is used. Solid NH₄ SO₄ is slowly added to the sample which is maintained at 4° C., until 38% saturation is achieved (231 g/l). The mixture is then stirred at 4° C. for 2 to 3 hours. The precipitate is recovered by centrifugation in a continuous flow centrifuge and washed 4 to 5 times with an equal volume of distilled H₂ O or with 0.5% SDS in H₂ O. After each wash, the precipitate is recovered by continuous centrifugation. The pellet becomes increasingly white with successive washes as contaminating protein is removed. SLPIII is recovered as a washed pellet and can be dried by lyophilization.

Trypsin Treatment Step of SLPIII

SLPIII was suspended in 50 mM Tris-HCl, pH 8.0, 0.1M NaCl buffer, and was placed in a 37° C. water bath, and TPCK treated trypsin solution was mixed into the suspension. The final trypsin concentration was 0.1%. After 3 hours, the solution was centrifuged at 16,000× g for 15 min., the pellet was washed with a half equal volume of 0.5% SDS in H₂ O first, then with distilled water. After each wash the pellet was recovered by centrifugation. The final product was resuspended in water and kept at 4° C. for further analysis.

With the trypsin treatment, SLPIII was purified to 99.4% purity.

Physical Measurements of SLPIII

Physical measurements of the purified silklike proteins have been compared with those of Bombyx mori silk in order to establish that the repetitive amino acid polymers produced microbiologically accurately mimic the properties of naturally occurring polymers. Physical measurements were performed to confirm the model of anti-parallel chain pleated sheet conformation for the crystalline regions of Bombyx mori silk fibroin (Marsh, Corey and Pauling, Biochem. Biophys. Acta (1955) 16; Pauling and Corey, Proc. Natl. Acad. Sci. USA (1953) 39:247). Preliminary analysis of x-ray diffraction patterns obtained from SLP films are consistent with those described by Fraser, MacRai, and Steward (1966) (Table 2). Circular Dichroic (CD) and Fourier transform infrared (FTIR) spectroscopic analysis of SLPIII are consistent with a high degree of extended β and β-turn conformations. Comparisons of the spectra obtained from SLPIII with that of naturally occurring silk fibroin in various solvents (Isuka and Young, Proc. Natl. Acad. Sci. USA (1966) 55:1175) indicate that SLPIII in solution consists of a mixture of the random and highly ordered structures seen in silk fibroins.

This data demonstrates that SLPIII contains extended β strands that are capable of packing into highly crystalline domains. The data also reveals the presence of distinct β-turn (reverse turn) conformations. A computer analysis of the amino acid sequence of SLPIII using an algorithm for secondary structure prediction developed by Chou and Fasman (1974), infra, indicates that the AGYG sequence has a β-turn propensity.

                  TABLE 2     ______________________________________     Material    a (A)       b (A)   c (A)     ______________________________________     (AG).sub.n  9.42        6.95    8.87     (AGAGSG).sub.n                 9.39        3.85    9.05     CTP fraction                 9.38        6.87    9.13     Native fibroin                 9.40        6.97    9.20     SLPIII      9.38        6.94    8.97     ______________________________________      Referenced in Fraser et al., J. Mol. Biol. (1966) 19:580.

Example 3

FCB-SLPIII Construction

Design

The SLPIII polymer (see above and also application Ser. No. 114,618, filed Oct. 29, 1987, PCT/US/87/02822) was chosen because of its predicted structure, allowing for fabrication of useful products; having good structural properties for use in a wide variety of applications; having β-turn structures between interactive strands; and allowing for substitution of the turn sequences with other sequences. The fibronectin cell-binding domain, amino acids 1405-1512, has a strong turn propensity, with the tripeptide RGD providing for cell attachment, predicted to be present within a hydrophilic loop between adjacent β-strands. A 10 amino acid sequence spanning this proposed loop structure (referred to as fibronectin cell-binding or FCB sequence) was chosen to constitute the functional block of amino acids to be inserted within the SLPIII backbone. The insertion site within the SLPIII backbone was chosen to correspond with the amino-acid sequence GAAGY which is also predicted to provide a turn structure (Chou and Fassman (1974) Biochemistry 13:222-244). The design allows for conservation of the FCB structure while causing minimal disruption of the SLPIII (GAGAGS)₉ β-strand crystal-packing domains.

DNA Synthesis and Gene Construction

The SLPIII gene monomer contains a PstI restriction endonuclease site within the sequence encoding the proposed turn structure, GAAGY. This site was used to insert the synthetic DNA encoding the 10 amino acids of the FCB sequence. Two complementary DNA strands comprising the FCB site, 36 bases in length, were synthesized consisting of the sequence shown below:

5'-GTGACTGGCCGTGGTGATAGCCCGGCTAGCGCTGCA-3' (SEQ ID NO:32)

3'-ACGTCACTGACCGGCACCACTATCGGGCCGATCGCG-5' (SEQ ID NO:33)

These oligonucleotides were purified according to the procedures described in Example 1, and be cloned into the PstI site of pSY1304. pSY1304 contains a single monomer gene fragment of SLPIII. pSY1304 DNA was digested with PstI and ligated with a mixture of the FCB oligonucleotides. The ligation reaction products were transformed into E. coli cells. Colonies containing the plasmid were selected on bacterial culture plates containing the antibiotic chloramphenicol. Individual colonies were grown and plasmid DNA purified and analyzed for the presence of the FCB oligonucleotide sequence by restriction digestion with NheI. Plasmids containing this restriction site were subjected to DNA sequencing and two candidates were shown to be correct. The partial nucleotide sequence of one of these, pSY1325, and the encoded amino-acid sequence is shown as follows:

                                      TABLE 3     __________________________________________________________________________      ##STR2##      ##STR3##      ##STR4##      ##STR5##      ##STR6##      ##STR7##     __________________________________________________________________________

The FCB-SLP monomer gene fragment was purified from pSY1325 by digestion with BanI, agarose-gel electrophoresis, and NACS purification (Example 1, No. 11). The monomer gene fragment was self-ligated and cloned into pSY937 which had been digested with BanI. The products of this ligation were transformed into E. coli and selected for growth on chloramphenicol. Plasmid DNA from individual colonies was analyzed for inserts containing multiple FCB-SLP monomer fragments by digestion with NruI and EcoRV and electrophoresis on agarose gels. One clone was identified containing two inserts, one of approximately 2.1 kb and the other of 2.8 kb. Both inserts were cloned individually and transferred to the expression vector pSY751. Plasmid pSY1325 was digested with NruI and PvuII and the 2.1 and 2.8 kb insert bands were purified. These DNA fragments were ligated with pSY751 that had been digested with PvuII. The products of this reaction were transformed into E. coli and selected for growth on the antibiotic ampicillin. Plasmid DNA from individual colonies was analyzed by restriction digestion for the presence of the FCB-SLP polymer gene. Two clones were identified, pSY1520 and 1521, containing the 2.1 and the 2.8 kb inserts, respectively.

    __________________________________________________________________________     pSY1521   FCB-SLP Protein   980 AA   MW 72,700     MDPVVLQRRDWENPGVTQLNRLAAHPPFASDPM     GAGS(GAGAGS).sub.6 GAAVTGRGDSPASAAGY      (GAGAGS).sub.9 GAAVTGRGDSPASAAGY!.sub.13     GAGAGSGAGAGSGAGAMDPGRYQLSAGRYHYQLVWCQK(SEQ ID NO:36)     __________________________________________________________________________

Product Purification

E. coli cells containing pSY1520 and pSY1521 were grown at 30° C. in LB medium containing 50 μg/ml ampicillin to an OD₆₀₀ of 0.7. Production of the FCB-SLP polymer proteins were induced by increasing the culture temperature to 42° C. for 1.5 hrs. The cells were harvested by centrifugation and lysed in sample buffer containing sodium dodecylsulfate (SDS) and β-mercaptoethanol by heating at 100° C. for 5 min. Samples of these lysates corresponding to 5×10⁸ cells were applied to an 8% polyacrylamide gel containing SDS, electrophoresed, and transferred to nitrocellulose filters by electroblotting. The filters were incubated either with anti-SLP or anti-FCB peptide antibody. Specific immunoreactivity with the anti-SLP antibody was observed for a protein band of approximately 75 kDal in lysates of pSY1520, 95 kDal in lysates of pSY1521, and 120 kDal in lysates of the SLPIII clone pSY1186. Reactivity with the anti-FCB antibody was observed only for the two FCB-SLP polymer bands.

E. coli containing pSY1521 was fermented at the 1L level using the batch process conditions described in Example 1, except as follows: Medium C was employed, the fermentor was a 2 L MBR with a working volume of 1 L. The starting and final volume were the same, i.e. no medium was added. 25 g of wet-weight cells were harvested by centrifugation and disrupted by French pressing at 15,000 psi. The cell lysate was centrifuged at 16,000× g for 20 min, yielding a pellet fraction containing >90% of the FCB-SLP protein as determined immunologically. The pellet was washed several times with 50 mM Tris-HCl (pH 8.0), 150 mM NaCl , 1 mM EDTA and then extracted with 5M LiBr. The supernatant phase of this extraction was dialyzed against deionized water resulting in the formation of a precipitate which was collected by centrifugation. The precipitate was re-extracted with 3M LiBr and the dissolved proteins were selectively precipitated by 4-fold dilution with distilled water. The remaining supernatant was dialyzed against 10 mM Tris (pH 7.5), 1 mM EDTA, 1 mM PMSF. The precipitated protein was collected by centrifugation, resuspended in deionized water, and analyzed by amino acid composition. The composition of this semi-purified fraction showed it to be approximately 30% FCB-SLP as determined by compositional content of the amino acids present in this polymer. The ratio of these amino acids correlated closely with that predicted by the DNA sequence of the FCB-SLP polymer gene.

Assay of Biological Activity

In order to determine whether the FCB-SLP polymer protein exhibited cell attachment activity, semi-purified protein was immobilized on nitrocellulose filters and incubated with mammalian tissue-culture cells. Lysate proteins from E. coli cells containing pSY1520, pSY1521, or pSY1186 (the SLPIII-encoding plasmid) were electrophoresed on SDS-PAGE and transferred to nitrocellulose filters by electroblotting. These filters were tested for their ability to promote cell attachment using a modification of the procedure of Hayman et al. (1982) supra. The filters were washed in PBS (10 mM Na phosphate pH 7.4, 150 mM NaCl) several times with gentle agitation, and soaked in PBS containing 5% condensed milk for 1 hr. The filters were then either incubated with 5% condensed milk in PBS containing anti-SLP or anti-FCB serum (1:100 dilution of serum) or 5% condensed milk in PBS alone for 2 hr at 37° C.. The filters were washed twice with PBS and incubated with cells. The cells were prepared by resuspension of subconfluent monolayers in 0.1% trypsin solution. The cells were incubated in DME medium containing 10% fetal calf serum at 0° C. for 30 min. The cells were centrifuged (except for H9 lymphocytes which were allowed to settle), washed in PBS, and finally resuspended in DME medium without serum at a density of 2.5×10⁶ cells/mi. The filters were overlayed with the cell suspensions in flat plastic dishes and incubated at 37° C. in a CO₂ incubator for 1 hr. The filters were washed twice in PBS to remove unbound cells and fixed in 3% formaldehyde. The filters were stained with Amido black in 45% methanol, 10% acetic acid, 45% water for 3 min and destained in 90% methanol, 2% acetic, 8% water.

By visual inspection, the filter incubated with Vero cells (African green monkey kidney epithelial cells) contained heavily stained regions. These regions corresponded to the positions of the FCB-SLP protein bands as determined by reactivity to parallel filters with anti-SLP and anti-FCB antibody. Microscopic inspection of these same areas of the filters showed that the heavy staining was due to the attachment of cells. No cells above background were bound to any other area of the filters including other E. coli lysate protein bands. Cells were not attached to the filter at the region corresponding to the SLPIII protein band. As expected, when incubated with H9 lymphocytes, no specific binding of cells to the filter was observed.

In order to determine the effect of protein concentration and various pretreatments of filters and cells with specific antibodies on cell attachment, a dot-blot cell-binding assay was developed. The assay was performed as described above except that semipurified FCB-SLP and SLPIII protein of known concentration was applied directly to nitrocellulose filter dots using a Schleicher and Schuell dot-blot manifold. Each sample was applied such that the first dot in a series contained 10 μg of protein and subsequent dots contained serial two-fold dilutions of this sample. Both the 75 kDal and the 95 kDal FCB-SLP proteins from pSY1520 and 1521, respectively, promoted Veto cell attachment at low concentration. The minimum amount of the 75 kDal FCB-SLP protein required to promote cell attachment was 0.05 μg/cm². For the 95 kDal FCB-SLP protein, the minimum was 0.2 μg/cm². Few cells were attached to the SLPIII-containing dots even at 12.5 μg/cm². Cell attachment to the FCB-SLP protein was inhibited by preincubation of the filter with anti-FCB or anti-SLP antibody. Cell attachment was inhibited but not abolished by preincubation of the cells with FCB peptide at a concentration of 300 μg/ml.

The introduction of the 10 amino acids of FCB into the SLPIII monomer sequence creates a protein polymer whose purification and solubility characteristics are not appreciably different from those of the SLPIII protein polymer, while gaining the additional property of the ability to promote cell attachment. The subject protein polymers may be formulated, either singly or in combination, with other compounds or protein polymers, synthetic or natural polymers, into fibers and films that promote cell attachment. The biological activity of FCB-SLP is chemically resistant to denaturation. Cell attachment occurs to the FCB-SLP proteins after treatment with high concentrations of detergent at 100° C., as well as with chaotropic denaturants. This stability facilitates the sterilization methods used in the preparation of bioactive materials. Solid-support cell-attachment matrices for enhancing the growth and differentiation of cells and tissue culture is a direct application of such materials. The subject polymers may be easily deposited onto other materials or substrates to provide for a cell-binding surface. Cell-attachment polymers in various forms, e.g., fibers, membranes, films, etc. may be used in bioreactors to suspend production cells within gently mixing liquid growth medium, increasing exposure to nutrients while decreasing cell damage to vigorous agitation. The subject material may be made into or coated on woven fabrics, films or membranes and used as wound-dressings that promote enhanced healing due to the attachment of cells involved in the healing process. In addition, the subject proteins may be formulated into or deposited onto the walls of prosthetic devices intended for in vivo replacement of blood vessels, bone Joints, tendons, ligaments, or the like, in order to promote in vitro and/or in vivo colonization of the device, thus improving its functional properties. In addition, the subject proteins may find application in the eye, as implants, carriers, coatings or the like.

SLP3-Cys (SLP-C)

Design of a chemically active cross-linkable polymer.

Many amino acids contained within a protein chain can be chemically modified using specific organic and inorganic reagents. Some of these amino acids include lysine (K), arginine (R), glutamate (E), aspartate (D), cysteine (C), serine (S), threonine (T), histidine (H), and tyrosine (Y). In order to create a protein polymer upon which specific reactions could be performed for the purpose of adding additional molecules to the chain at specific locations or to link chains of the same or different polymers together, or to link chains to a suitable surface, SLP-C was designed. The 59 amino acid silk-like monomer of SLP3 was modified to include the amino acid sequence GAGCGDPGKGCCVA. Features of the inclusion sequence are: 1. the GAGC and GCCV tetrapeptides conform with the β-strand structure of the flanking silk-like amino acids and contain cysteines whose sulfhydryls are reactive under oxidation and can be covalently crosslinked, 2. the DPGK does not conform with the β-strand structure therefore forcing an unaligned structure within the silk-like strands. This latter sequence further has the advantage of providing two additional chemically modifiable residues, aspartate and lysine, and contains the dipeptide DP which is susceptible to specific chemical peptide cleavage.

Polymer Construction

Two oligonucleotide strands were synthesized and purified as described in Example 1. ##STR8##

The two oligonucleotide strands were annealed and ligated with the DNA of plasmid pSY1304 (SLP3 monomer in pSY937) which had been digested with PstI REN.

The product of this ligation reaction was transformed into E. coli strain HB101. Plasmid DNA from transformants was purified and digested with BanI; clones containing inserts of the correct size were digested with PstI and EcoV RENs for the determination of orientation. Plasmid DNA from correct clones was sequenced. Plasmid pPT0103 (shown in Table 4) contained the desired SLP-C monomer sequence, oligonucleotides (1) and (2) are shown below in bold and underlined.

                                      TABLE 4     __________________________________________________________________________      ##STR9##      ##STR10##      ##STR11##      ##STR12##      ##STR13##     __________________________________________________________________________

Plasmid DNA from pPT0103 was digested with BanI REN and the digestion fragments were separated by agarose gel electrophoresis. The SLP-C gene fragment, 225 bp, was excised and purified by NACS column (see Example 1. The purified fragment was ligated with plasmid pSY1262 which had been digested with REN BanI. The product of this ligation reaction was transformed into E. coli strain HB101. Transformants were selected for resistance to kanamycin. Plasmid DNA from individual transformants was purified and analyzed for increase in size due to SLP-C multiple DNA insertion. Several clones were obtained ranging in size from approximately 1.0 kbp to 5.4 kbp. Six clones (pPT0105 to pPT0110) were chosen to be used for expression of SLP-C.

Expression

An overnight culture which had been grown at 30° C. was used to inoculate 50 ml of LB media contained in a 250 ml flask. Kanamycin was added at a final concentration of 50 μg per ml and the culture was incubated with agitation (200 rpm) at 30° C. When the culture reached an OD₆₀₀ of 0.8, 40 ml were transferred to a new flask prewarmed at 42° C. and incubated at the same temperature for approximately 2 hours. The cultures (30° C. and 42° C.) were chilled on ice and OD₆₀₀ was taken. Cells were collected by centrifugation, divided in 1.0 OD₆₀₀ aliquot and used to perform dot blot and western analysis using SLP antibodies (see Example 1). For purification and amino acid analysis, larger cultures were used.

Analysis

E. coli strain HB101 containing plasmid pPT0105 was grown at 30° C. to an OD₆₀₀ of 0.7 and then shifted to 42° C. after the addition of 40 μCi per ml of ³⁵ S-Cysteine, for 2.0 hours. The proteins produced by these cells were analyzed by SDS-PAGE for detection of ³⁵ S-Cysteine and reactivity to SLP antibodies (see Example 1). In both analyses a strong reactive band was observed with an apparent molecular weight of approximately 150 kDal.

    __________________________________________________________________________     pPT0105   SLP-C Protein   1333AA   MW 97,000     MDPVVLQRRDWENPGVTQLNRLAAHPPFASDPMGAGS(GAGAGS).sub.6      GAA(GAGCGDPGKGCC)VAGAGY(GAGAGS).sub.9 !.sub.16     GAAGAGCGDPGKGCCVAGAGY(GAGAGS).sub.2 GAGAMDPGRYQLSAGRYHYQLVWCQK     (SEQ ID NO:41)     __________________________________________________________________________

SLP3-Laminin Cell Binding (SLP-L)

Design of a biologically active polymer for attachment of nerve cells.

The amino acid sequence of human laminin B1, a protein component of some extracellular basement membranes upon which cells attach and proliferate, contains a pentapeptide, YIGSR, which has been implicated in providing a receptor attachment site for nerve cells. Two silk-like polymers, one containing a 12 and the other a 14 amino acid sequence each including the pentapeptide were designed. In the first polymer designated SLP-L1, the 59 amino acid monomer of SLP3 was interrupted near its tyrosine residue with the inclusion of the sequence YCEPGYIGSRCD. In SLP-L2 the inclusion sequence was LCVSEPGYIGSRCD. Since they do not conform to β-strand structure, both sequences when embedded within the β-strand structure of the silk-like strands should form unaligned loops. SLP-L1 and SLP-L2 are designed to provide a synthetic substrate for the attachment of nerve cells both in culture and in vivo. The formulation of these polymers into nerve conduits for the regeneration of injured nerves is one possible application.

Construction of SLP-L1.

Two oligonucleotide strands were synthesized and purified as described in the Example 1. ##STR14##

These oligonucleotide strands were annealed and ligated with plasmid pSY1304 (see WO 88/03533, page 65) which had been digested with PstI REN.

The product of this ligation reaction was transformed into E. coli strain HB101. Plasmid DNA from transformants was purified and digested with BanI; clones containing inserts of the correct size were digested with PstI and EcoRV RENs to determine the correct orientation. Plasmid DNA from correct clones was sequenced. Plasmid pT0120 (shown in Table 5) contained the desired SLP-L1 monomer sequence, oligonucleotides (i) and (ii) are shown below in bold and underlined.

                                      TABLE 5     __________________________________________________________________________      ##STR15##      ##STR16##      ##STR17##      ##STR18##     __________________________________________________________________________

Plasmid DNA from pPT0120 was digested with BanI REN and the digestion fragments were separated by agarose gel electrophoresis. The SLP-L1 gene fragment, 216 bp, was excised and purified by NACS column (see Example 1). The purified fragment was ligated with plasmid pSY1262 which had been digested with REN BanI. The product of this ligation reaction was transformed into E. coli strain HB101. Transformants were selected for resistance to kanamycin. Plasmid DNA from individual transformants was purified and analyzed for increase in size due to SLP-L1 multiple DNA insertion. Several clones were obtained ranging in size from 1 kbp to 4 kbp. One clone pPT0123, with an insert of approximately 2.4 kbp was chosen for expression and protein analysis.

Construction of SLP-L2

An additional two oligonucleotide strands were synthesized as described in Example 2.

    5'-CTGTGTGTTAGCGAACCC-3'(SEQ ID NO:46)                     iii)

    3'-ACGTGACACACAATCGCTTGGG-5'(SEQ ID NO:47)                 iv)

These oligonucleotide strands were annealed and ligated with plasmid pPTO126 (this plasmid was constructed from pPT 0125, see construction of CLP monomer in which the SLP-L1 monomer had been transferred) which had been digested with PstI and SmaI RENs. Plasmid DNA from transformant colonies resistant to chloramphenicol was purified. One plasmid, pPT 0121, (see Table 6) which was not digestible with REN PstI, was sequenced and proven to be the desired SLP-L2 monomer gene fragment. The oligonucleotide strands (iii) and (iv) are shown below in bold and underlined.

Expression of SLP-Polymers.

An overnight culture which had been grown at 30° C. was used to inoculate 50 ml of LB media contained in a 250 ml flask. Kanamycin was added at a final concentration of 50 μg per ml and the culture was incubated with agitation (200 rpm) at 30° C.. When the culture reached an OD₆₀₀ of 0.8, 40 ml were transferred to a new flask prewarmed at 42° C. and incubated at the same temperature for approximately 2 hours. The cultures (30° C. and 42° C.) were chilled on ice and OD₆₀₀ was taken. Cells were collected by centrifugation, divided in 1.0 OD₆₀₀ aliquot and used to perform dot blot and western analysis using SLP antibodies (see Example 1). For purification and amino acid analysis larger cultures were used.

    __________________________________________________________________________     pPT0123    SLP-L1 Protein    777 AA    M 60,300     MDPVVLQRRDWENPGVTQLNRLAAHPPFASDPMGAGS(GAGAGS).sub.6      GAAVCEPGYIGSRCDAGY(GAGAGS).sub.9 !.sub.9     GAAVCEPGYIGSRCDAGY(GAGAGS).sub.2 GAGAMDPGRYQLSAGRYHYQLVWCQK(SEQ ID     NO:48)     pPTO150   SLP-L2 Protein   649AA   MW 51,000     MDPVVLQRRDWENPGVTQLNRLAAHPPFASDPMGAGS(GAGAGS).sub.6      GAALCVSEPGYIGSRCDAGY(GAGAGS).sub.9 !.sub.7     GAALCVSEPGYIGSRCDAGY(GAGAGS).sub.2 GAGAMDPGRYQLSAGRYHYQLVWCQK(SEQ ID     NO:49)     __________________________________________________________________________

E. coli strain HB101 containing plasmid pPTO123 or pPT0150 were grown as described above. The proteins produced by these cells were analyzed by SDS-PAGE for detection of reactivity to SLP antibodies (see Example 1). In both analyses a strong reactive band was observed of an apparent molecular weight of 90 kD and 68 kD respectively.

CLP AND CLP-CB

The design of a collagen-like polymer with thermoreversible gelation character.

Chemically hydrolyzed natural collagen can be denatured and renatured by heating and cooling to produce gelatin which is used in photographic and medical applications, among other applications. The chain property of collagen responsible for this phenomenon is its ability to spontaneously form interchain aggregates having a conformation designated as a triple helix. The helices are stabilized by weak interactions between chains arising from the close proximity of the peptide backbone at locations every third residue occupied by glycine and kinks provided by proline and hydroxyproline at the two positions between glycines. The geometry of the three kinked chains allows for hydrogen bonding within the triple helix. The structure is loose and is readily accessible to the interaction with water, small organic and inorganic molecules, other proteins, and cells. Although collagen consists of many different amino acid sequences one of the more structurally stable segments exists at the amino and terminal ends of the processed collagen chains. These ends consist almost exclusively of the repeating tripeptide sequence GPP (the second P is often hydroxylated). The collagen-like polymer CLP was designed predominantly of repeating GPP tripeptides (8 within each monomer segment). Other tripeptides were included in order to decrease the overall repetitiveness of the gene and to allow the use of additional codons which could be used to better manipulate the DNA. These were GAP (twice), GPA, GPV, and GSP. All of these triplets occur in natural collagen although never in the sequence and context used in CLP. The properties of CLP were designed to yield a protein polymer that would undergo thermoreversible gelation at high temperatures, as well as being nonimmunogenic. The high stability of the helices should create high tensile strength in fibers or membranes formulated from CLP. These chain properties should allow the creation of hydrogel colloids in aqueous solutions which when applied to hard substrates should act as soft coatings. Because of the simple sequence of CLP, its optical absorbance should be minimal in all wavelengths down to 220 nm.

The design of a soft coating material with cell attachment function.

The versatile formulation properties of collagen-like polymers makes them ideal as biomaterials used in implantable devices. Either as a coating on the surface of prostheses or as a structural component of the device itself, CLP could promote tissue integration by providing improved blood and cellular interaction. The latter function is mediated in natural collagen by a specific amino acid sequence which acts as a ligand for a cellular receptor. In order to create a CLP polymer with cell attachment activity, the sequence GLPGPKGDRGDAGPKGADGSP (SEQ ID NO:50) was included within the CLP monomer sequence. In contrast to the hydrophobic GPP collagen-like flanking sequences, this block of 21 highly charged hydrophilic amino acids should form a destabilized flexible helical region accessible for interaction with cells. Promotion of epithelialization of the surface of an implanted device will improve the compatibility and rejection characteristics increasing its lifetime and safety. The subject compositions may find use as wound dressings, allowing for neovascularization, eye applications, matrices for artificial organs and the like.

Construction of CLP monomer.

The CLP (Collagen-Like Protein) synthetic gene was assembled from smaller parts. First, three double-stranded sections of DNA ranging from 40 to 60 bp in length were chemically synthesized. ##STR19##

Sections A and C (the sequence of section C after the arrow is not coding for CLP but is a modification of the multiple cloning site of the acceptor plasmid) were cloned separately into plasmid pUC19 that had been digested with the appropriate REN. The DNA sequence was verified and two plasmids were selected, pPTO111 and pPT0112, carrying the correct sequence. Section B was ligated into pPTO111 that had been digested with BanII and SmaI RENs. Plasmid pPT0113 was sequenced and found correct.

Plasmids pPT0112 and pPT0113 were digested with the appropriate RENs to release section C and Sections A+B respectively. After purification these DNA fragments were ligated into pSY937 previously digested with BanI and EcoRV RENs. The product of the ligation reaction was transformed into E. coli strain HB101. Plasmid DNA from transformants was purified and digested with BanI; clones containing inserts of the correct size were sequenced. Plasmid pPT0116 contained the desired sequence shown for section A+B+C (see Table 7). This plasmid was digested with BanI REN, and the digestion mixture was diluted and ligated with T4 DNA Ligase. E. coli HB 101 competent cells were transformed and screened for loss of the CLP insert; one plasmid, pPT 0125, was selected to be used as acceptor vector for subsequent constructions.

                                      TABLE 7     __________________________________________________________________________      ##STR20##      ##STR21##      ##STR22##     __________________________________________________________________________

Construction of CLP-CB monomer.

Two oligonucleotide strands were synthesized as described in Example 1. ##STR23##

The two oligonucleotide strands were annealed and ligated with the DNA of plasmid pPT0116 (CLP monomer in pSY937) which had been digested with AvaI REN.

The products of this ligation reaction were transformed into E. coli strain HB101. Plasmid DNA from transformants was purified and digested with BanI; clones containing inserts of the correct size were digested with PstI and BglI RENs for the determination of orientation. Plasmid DNA from correct clones was sequenced. Plasmid pPT0117 (shown in Table 8) contained the desired CLP-CB monomer sequence, oligonucleotides (i) and (ii) are shown below in bold and underlined.

                                      TABLE 8     __________________________________________________________________________      ##STR24##      ##STR25##      ##STR26##      ##STR27##     __________________________________________________________________________

CLP and CLP-CB Polymer Construction

CLP

Plasmid DNA from pPTO116 was digested with BanI REN and the digestion fragments were separated by agarose gel electrophoresis. The CLP gene fragment, 117 bp, was excised and purified by NACS column (see Example 1). The purified fragment was ligated with plasmid pSY1262 which had been digested with REN BanI. The product of this ligation reaction was transformed into E. coli strain HB101. Transformants were selected for resistance to kanamycin. Plasmid DNA from individual transformants was purified and analyzed for increased size due to CLP multiple DNA insertion. Several clones were obtained ranging in size from 0.5 kbp to 0.9 kbp. One clone pPTO190, with an insert of approximately 3.5 kbp was chosen for expression and protein analysis.

CLP-CB

Plasmid DNA from pPTO117 was digested with BanI REN and the digestion fragments were separated by agarose gel electrophoresis. The CLP-CB gene fragment, 180 bp, was excised and purified by NACS column (see Example 1). The purified fragment was ligated with plasmid pSY1262 which had been digested with REN BanI. The product of this ligation reaction was transformed into E. coli strain HB101. Transformants were selected for resistance to kanamycin. Plasmid DNA from individual transformants was purified and analyzed for increased size due to CLP-CB multiple DNA insertion. Several clones were obtained ranging in size from 0.5 kbp to 3.5 kbp. One clone pPTO129, with an insert of approximately 1.1 kbp was chosen for expression and protein analysis.

                                      TABLE 6     __________________________________________________________________________      ##STR28##      ##STR29##      ##STR30##      ##STR31##      ##STR32##     __________________________________________________________________________

Plasmid DNA from pPTO121 was digested with BanI REN and the digestion fragments were separated by agarose gel electrophoresis. The SLP-L2 gene fragment, 222 bp, was excised and purified by NACS column (see Example 1). The purified fragment was ligated with plasmid pSY1262 which had been digested with REN BanI. The product of this ligation reaction was transformed into E. coli strain HB101. Transformants were selected for resistance to kanamycin. Plasmid DNA from individual transformants was purified and analyzed for increase in size due to SLP-L2 multiple DNA insertion. Several clones were obtained ranging in size from 1 kbp to 4 kbp. One clone pPTO150, with an insert of approximately 2.0 kbp was chosen for expression and protein analysis.

CLP and CLP-CB Expression

An overnight culture which had been grown at 30° C. was used to inoculate 50 ml of LB media contained in a 250 ml flask. Kanamycin was added at a final concentration of 50 μg per ml and the culture was incubated with agitation (200 rpm) at 30° C. When the culture reached an OD₆₀₀ of 0.8, 40 ml were transferred to a new flask prewarmed at 42° C. and incubated at the same temperature for approximately 2 hours. The cultures (30° C. and 42° C.) were chilled on ice and OD₆₀₀ was taken. Cells were collected by centrifugation divided in 1.0 OD₆₀₀ aliquot and used to perform dot blot and western analysis using CLP antisera (see Example 1). For purification and amino acid analysis larger cultures were used.

Analysis

E. coli strain HB101 containing plasmid pPTO190 or pPT 0129 were grown as described above. The proteins produced by these cells were analyzed by SDS-PAGE for detection of reactivity to CLP antibodies (see Example 1). In both analyses a strong reactive band was observed of an apparent molecular weight of 45 kD and 60 kD respectively.

    __________________________________________________________________________     pPTO190    CLP Protein    331 AA    MW 29,000     MDPVVLQRRDWENPGVTQLNRLAAHPPFASDPM     { GAP (GPP).sub.4 !.sub.2 GPAGPVGSP}9     GAMCAHRYQLSAGRYHYQLVWCQK(SEQ ID NO:65)     pPTO129    CLP-CB   Protein   358 AA    MW 32,000     MDPVVLQRRDWENPGVTQLNRLAAHPPFASDPM     { GAP (GPP).sub.4 !.sub.2 (GLPGPKGDRGDAGPKGADGSP)GPAGPVGSP}.sub.5     GAMCAHRYQLSAGRYHYQLVWCQK(SEQ ID NO:66)     __________________________________________________________________________

Construction of KLP 1.2 monomer

The keratin-like polymer, KLP-1.2, was modified to include the 15 amino acid sequence GRGGSFGGSSYGGGS (SEQ ID NO:67) (termed interaction sequence, IS) and designated KLP-1.3. Segments similar to this sequence occur at the amino and carboxyl terminal ends of the 59,000 molecular weight subunit of mouse epidermal keratin (Steinert et. al., Nature 302,794-800, 1983). They comprise terminal nonhelical structures whose function is unknown. However, proteolytic digestion products of filamentous keratin lacking these terminal sequences also lack the ability to reform fiber structures. We propose that the IS sequence is a non-helical, possibly beta conformation, forming structure which interacts with adjacent helical segments to organize them into fibers. Depending on its dispersity and length, the IS sequence within KLP promotes the association of KLP helices into complex matrices or organizes the helical chains into globular macromolecular particles. The IS sequence can also be active in associating with existing keratin fibers and can also promote the specific non-covalent binding of KLP and other polymer compositions to the skin, hair, nails, etc.

Keratin-like proteins are designed to provide a matrix which can be converted to a hardened protein by cross-linking. The repeating 7-7 motif produces alphahelices, with 4 turns of the helix, each turn stabilized by intramolecular hydrogen bonds. The placement of the charged amino acids produces charge complementarity between helices lying next to one another. Adjacent helices form coiled bundles of helices, which in turn aggregate into aligned fibers and meshed networks. The contact points can be chemically linked, if desired. Depending on the amount of cross-linkable amino acids, cysteines or acid/basic amino acids, e.g., D,E/K,R, various degrees of hardening can be obtained. At less than 3% by weight cysteine content, the polymer is soft and pliable, while with greater than 3%, the protein hardens as in scale and horn. Instead of cystine cross-links, amide cross-links can be obtained, using carbodiimides, for example.

The KLP (Keratin Like Protein) synthetic gene was assembled from smaller parts. First, four double-stranded sections of DNA ranging from 46 to 62 bp in length were chemically synthesized as described in Example 1.

    __________________________________________________________________________      ##STR33##      ##STR34##      ##STR35##      ##STR36##     __________________________________________________________________________

The assembly of the KLP 1.2 monomer required several steps. Sections A and B were cloned separately from sections C and D and then the monomer was assembled from the two separate clones.

Section D was cloned in plasmid pUC19 previously digested to completion with REN SacI and SphI. Five clones were selected to be sequenced. Plasmid pPT0119 was found to be correct and was chosen for the cloning of section C after it had been digested with the appropriate RENs. The DNA sequence was verified and one plasmid was selected, pPTO167, carrying the correct sequence of section C+D.

Plasmid pSY1568 was digested with BanI and SphI RENs and ligated with section A of KLP. Plasmid pPT0127 was found to be correct after DNA sequencing and was used for subsequent cloning of Section B. Plasmid pPT0127 digested with HindIII and NsiI RENs was ligated with section B synthesized DNA. The DNA sequence was verified and one plasmid was selected, pPT0128, carrying the correct sequence. Plasmid pPT0167 was digested with REN DdeI and the DNA band carrying the part of the vector and KLP section C+D was agarose purified. The purified DNA was digested to completion with REN NsiI and the agarose slice corresponding to the section C+D was ligated into plasmid pPT0128 previously digested with CelII and NsiI RENs. The product of the ligation reaction was transformed into E. coli strain HB101. Plasmid DNA from transformants was purified and digested with FokI; clones containing an insert of the correct size were sequenced. "Xcml REN; positive clones were sequenced for KLP 1.2 monomer. One clone, plasmid pPTO188, contained a KLP DNA sequence of only 3 repeats of the 14 amino acid motif (Bert: this was as Franco wrote it, you may want to replace with 6 repeats of the 7 amino acid motif). This plasmid was chosen for subsequent polymer constructions (See table 9).

                                      TABLE 9     __________________________________________________________________________      ##STR37##      ##STR38##      ##STR39##     __________________________________________________________________________

KLP 1.2 Polymer Construction

Plasmid DNA from pPTO188 was digested with FokI REN and the digestion fragments were separated by agarose gel electrophoresis. The KLP 1.2 gene fragment, 126 bp, was excised and purified by NACS column (see Example 1). Plasmid pPTO188 backbone was also purified and ligated to itself. This ligatin product was used to transform competent cells of E. coli strain HB101. Plasmid DNA from individual transformants was analyzed for loss of the KLP gene fragment. One plasmid, pPTO189, was selected to be used as an acceptor for the multimerization of the KLP gene monomer. Plasmid pPTO189 was digested with Fokl REN and subsequently treated with phosphatase (see Example1). After agarose purification by NACS column (see Example 1) the plasmid was ligated with approximately 0.5 mg of KLP gene monomer DNA. The ligation mixture was used to transform competent cells of E. coli strain HB101. Several clones were obtained ranging in size from 0.25 kbp to 2.0 kbp. One clone, pPTO191, with an insert of approximately 2.0 kbp was chosen for further constructions. Plasmid pPTO191 was digested with Banl, Pyull and Stul RENs; Stul digestion was necessary because the KLP insert was co-migrating on the gel with the plasmid backbone. The KLP gene multimer was purified by NACS column (see Example 1). The purified fragment was ligated with plasmid pSY1262 which had been digested with RENs BanI and EcoRV.

The product of this ligation reaction was transformed into E. coli strain HB101. Transformants were selected for resistance to kanamycin. Plasmid DNA from individual transformants was purified and analyzed for increased size due to KLP multiple DNA insertion. Several clones were obtained ranging in size from 1 kbp to 4 kbp. One clone pPTOYYY, with an insert of approximately 3.0 kbp was chosen for expression and protein analysis.

Analysis

E. coli strain HB101 containing plasmid pPTO192 or PTO193 were grown at 30° C. to an OD₆₀₀ of 0.7 and then shifted to 42° C. for 2.0 hours. The proteins produced by these cells were analyzed by SDS-PAGE for detection of ¹⁴ C labeled protein. A strong reactive band was observed with an apparent molecular weight of approximately 62 kD and 80 kD, respectively.

    __________________________________________________________________________     pPTO192    KLP Protein    572AA    MW 61,800     MDPVVLQRRDWENPGVTQLNRLAAHPPFASDPMGAGCSS      (AKLKLAEAKLELAE).sub.3 !.sub.12     AKMHAHPPGSISDQLSAGRYHYQLVWCQK(SEQ ID NO:78)     pPTO193   KLP Protein   740AA   MW 79,900     MDPVVLQRRDWENPGVTQLNRLAAHPPFASDPMGAGCSS      (AKLKLAEAKLELAE).sub.3 !.sub.16     AKMHAHPPGSISDQLSAGRYHYQLVWCQK(SEQ ID NO:79)     __________________________________________________________________________

KLP 1.3

Construction of KLP1.3 Polymer:

Two oligonucleotide strands were synthesized and purified as described in Example 1. ##STR40##

The two oligonucleotide strands were annealed and ligated with the DNA of plasmid pPTO188 which had been digested with EaeI and NsiI RENs.

The products of this ligation reaction are transformed into E. coli strain HB101. Plasmid DNA from transformants are purified and digested with FokI: clones containing inserts of the correct size are digested with the appropriate RENs and plasmid DNA from correct clones are sequenced. One plasmid (shown in Table 10) contains the desired KLP 1.3 monomer sequence, oligonucleotides (5A) and (5B) are shown below in bold and underlined.

                                      TABLE 10     __________________________________________________________________________      ##STR41##      ##STR42##      ##STR43##      ##STR44##     __________________________________________________________________________

KLP 1.3 Polymer Construction

Plasmid DNA containing the KLP 1.3 monomer sequence is digested with FokI REN and the digestion fragments are separated by agarose gel electrophoresis. The KLP 1.3 gene fragment, 171 bp, is excised and purified by NACS column (see Example 1). The purified fragment is ligated with plasmid pSY1262 which is digested with REN BanI. The product of this ligation reaction is transformed into E. coli strain HB101. Transformants are selected for resistance to kanamycin. Plasmid DNA from individual transformants is purified and analyzed for increase in size due to KLP 1.3 multiple DNA insertion. Several clones obtained and chosen for expression and protein analysis.

Analysis

E. coli strain HB101 containing plasmid pPTOTBD is grown at 30° C. to an OD₆₀₀ of 0.7 and then shifted to 42° C., after the addition of 40 μCi per ml of ¹⁴ C-Leucine or Alanine, for 2.0 hours. The proteins produced by these cells are analyzed by SDS-PAGE for detection of 14C labeled protein. A strong reactive band is observed.

KLP 1.3 Protein

MDPVVLQRRDWENPGVTQLNRLAAHPPFASDPMGAGCSS AKLKLAEAKLELAE)₃ GRGGSFGGSSYGGGS!_(n) AKMHAHPPGSISDQLSAGRYHYQLVWCQK (SEQ ID NO:84)

Following the procedures described above, other polymers are prepared. These polymers influence cellular function by containing ligand sequences which interact with cell surface receptors. These polymers are prepared by inserting oligonucleotides encoding the nerve cell attachment promoting sequence from human laminin B1, YIGSR, into the protein polymer sequence of ELP I at the SmaI site. Additionally, a polymer is prepared by inserting oligonucleotides encoding the T cell receptor binding sequences from human MHC class I HLA-A2, PEYDGETRKVKAHSQTHRVDTLRY (residues 57-84) and TRKWAAHVEQLRAYEGTVEWRY (residues 143-171), into the SLPIII polymer in alternating fashion at the gene location containing the PstI site.

These polymers exhibit activities of chemical reactivity and cross-linking with themselves or with other polymers or materials. These polymers are prepared by inserting oligonucleotides encoding the sequences DPGK (SEQ ID NO:88), NPGC (SEQ ID NO:89), or RPGE (SEQ ID NO:90) into the PstI site of the synthetic polymer gene, SLPIII. Other examples of chemically reactive polymers are prepared by inserting oligonucleotides encoding the sequences GAGD (SEQ ID NO:91), GAGC (SEQ ID NO:92), or GAGK (SEQ ID NO:93) into the BanII site of the synthetic polymer gene, SLPIV, or by inserting oligonucleotides encoding the sequences GEGVP (SEQ ID NO:94), GCGVP (SEQ ID NO:95), or GKGVP (SEQ ID NO:96) into the SmaI site of the synthetic polymer gene ELP I. The synthetic polymers SLPIV and ELP I are described in the previously cited PCT application.

Additional compositions are prepared according to the above procedures. These compositions include: ##STR45##

It is evident from the above results that a powerful capability is provided for producing polymers having good structural properties, as well as novel capabilities, where specific amino-acid sequences may be made readily available to the environment, while providing for structural or non-structural capabilities such as fiber, film, and membrane formation, emulsions, coatings, etc. Thus the polymer is comprised of strands which interact to provide for structural characteristics, such as article formation with good mechanical, e.g., tensile properties, while at the same time providing for amino acid sequences which may be used in a wide variety of biological and chemical applications. The subject compositions may be used for binding a wide variety of specific binding materials, as catalytic substances, where the amino acid sequence may specifically chelate a wide variety of elements, as purification media, as composites, laminates, adhesives, combined with inorganic or organic materials, such as carbon fibers, nylon fibers, nitrocellulose, etc., as flask coatings for the growth of cells, as affinity columns, supports for biological materials, and the like.

All publications and patent applications cited in this specification are herein incorporated by reference as if each individual publication or patent application were specifically and individually indicated to be incorporated by reference.

Although the foregoing invention has been described in some detail by way of illustration and example for purposes of clarity of understanding, it will be readily apparent to those of ordinary skill in the art in light of the teachings of this invention that certain changes and modifications may be made thereto without departing from the spirit or scope of the appended claims.

    __________________________________________________________________________     SEQUENCE LISTING     (1) GENERAL INFORMATION:     (iii) NUMBER OF SEQUENCES: 118     (2) INFORMATION FOR SEQ ID NO:1:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 4 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:1:     ValProGlyGly     (2) INFORMATION FOR SEQ ID NO:2:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 5 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:2:     ValProGlyValGly     15     (2) INFORMATION FOR SEQ ID NO:3:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 6 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:3:     AlaProGlyValGlyVal     15     (2) INFORMATION FOR SEQ ID NO:4:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 7 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:4:     AlaLysLeuLysLeuAlaGlu     15     (2) INFORMATION FOR SEQ ID NO:5:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 7 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:5:     AlaLysLeuGluLeuAlaGlu     15     (2) INFORMATION FOR SEQ ID NO:6:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 16 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:6:     AlaLysProProSerThrTyrXaaProProProSerThrTyrXaaLys     151015     (2) INFORMATION FOR SEQ ID NO:7:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 6 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:7:     SerGlyAlaGlyAlaGly     15     (2) INFORMATION FOR SEQ ID NO:8:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 59 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:8:     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     151015     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     202530     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     354045     GlyAlaGlyAlaGlySerGlyAlaAlaGlyTyr     5055     (2) INFORMATION FOR SEQ ID NO:9:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 7 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:9:     LysLeuXaaLeuAlaGluAla     15     (2) INFORMATION FOR SEQ ID NO:10:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 4 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:10:     HisCysCysHis     1     (2) INFORMATION FOR SEQ ID NO:11:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 4 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:11:     CysHisHisCys     1     (2) INFORMATION FOR SEQ ID NO:12:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 7 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:12:     AspProGlyLysGlyXaaTyr     15     (2) INFORMATION FOR SEQ ID NO:13:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 13 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:13:     GluProGlyTyrIleGlySerArgCysAspAlaGlyTyr     1510     (2) INFORMATION FOR SEQ ID NO:14:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 11 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:14:     ProLysGlyAspArgGlyAspAlaGlyProLys     1510     (2) INFORMATION FOR SEQ ID NO:15:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 11 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:15:     AlaValThrGlyArgGlyAspSerProAlaSer     1510     (2) INFORMATION FOR SEQ ID NO:16:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 15 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:16:     GlyArgGlyGlySerPheGlyGlySerSerTyrGlyGlyGlySer     151015     (2) INFORMATION FOR SEQ ID NO:17:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 14 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:17:     GlyAlaGlyCysGlyAspProGlyLysGlyCysCysValAla     1510     (2) INFORMATION FOR SEQ ID NO:18:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 12 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:18:     ValCysAspArgGlyTyrIleGlySerArgCysAsp     1510     (2) INFORMATION FOR SEQ ID NO:19:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 11 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:19:     ProLysGlyAspArgAlaAspAlaGlyProLys     1510     (2) INFORMATION FOR SEQ ID NO:20:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 26 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:20:     TyrThrIleThrValTyrAlaValThrGlyArgGlyAspSerProAla     151015     SerSerLysProIleSerIleAsnTyrCys     2025     (2) INFORMATION FOR SEQ ID NO:21:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 30 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:21:     GlyAlaProGlyProProGlyProProGlyProProGlyProProGly     151015     AlaProGlyProProGlyProProGlyProProGlyProPro     202530     (2) INFORMATION FOR SEQ ID NO:22:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 61 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:22:     GGTGCCGGCAGCGGTGCAGGAGCCGGTTCTGGAGCTGGCGCGGGCTCTGGCGCGGGCGCA60     G61     (2) INFORMATION FOR SEQ ID NO:23:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 65 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:23:     GATCCTGCGCCCGCGCCAGAGCCCGCGCCAGCTCCAGAACCGGCTCCTGCACCGCTGCCG60     GCACC65     (2) INFORMATION FOR SEQ ID NO:24:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 22 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:24:     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     151015     GlyAlaGlyAlaGlySer     20     (2) INFORMATION FOR SEQ ID NO:25:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 68 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:25:     GATCCGGCGCAGGCGCTGGTTCTGGCGCAGGGGCAGGCTCTGGCGCAGGAGCGGGGTCTG60     GAGCTGCA68     (2) INFORMATION FOR SEQ ID NO:26:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 60 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:26:     GCTCCAGACCCCGCTCCTGCGCCAGAGCCTGCCCCTGCGCCAGAACCAGCGCCTGCGCCG60     (2) INFORMATION FOR SEQ ID NO:27:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 23 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:27:     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     151015     GlyAlaGlySerGlyAlaAla     20     (2) INFORMATION FOR SEQ ID NO:28:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 55 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:28:     GGCTATGGAGCTGGCGCTGGCTCAGGTGCTGGAGCAGGAAGCGGAGCGGGTGCCA55     (2) INFORMATION FOR SEQ ID NO:29:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 69 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:29:     AGCTTGGCACCCGCTCCGCTTCCTGCTCCAGCACCTGAGCCAGCGCCAGCGCCAGCTCCA60     TAGCCTGCA69     (2) INFORMATION FOR SEQ ID NO:30:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 19 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:30:     AlaGlyTyrGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     151015     AlaGlyAla     (2) INFORMATION FOR SEQ ID NO:31:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 1177 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: protein     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:31:     AspProValValLeuGlnArgArgAspTrpGluAsnProGlyValThr     151015     GlnLeuAsnArgLeuAlaAlaHisProProPheAlaSerAspProMet     202530     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     354045     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     505560     GlySerGlyAlaGlyAlaGlySerGlyAlaAlaGlyTyrGlyAlaGly     65707580     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     859095     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     100105110     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     115120125     AlaGlySerGlyAlaAlaGlyTyrGlyAlaGlyAlaGlySerGlyAla     130135140     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     145150155160     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     165170175     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     180185190     AlaGlyTyrGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     195200205     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     210215220     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     225230235240     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaAlaGlyTyrGlyAla     245250255     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     260265270     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     275280285     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     290295300     GlyAlaGlySerGlyAlaAlaGlyTyrGlyAlaGlyAlaGlySerGly     305310315320     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     325330335     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     340345350     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     355360365     AlaAlaGlyTyrGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     370375380     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     385390395400     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     405410415     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaAlaGlyTyrGly     420425430     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     435440445     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     450455460     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     465470475480     AlaGlyAlaGlySerGlyAlaAlaGlyTyrGlyAlaGlyAlaGlySer     485490495     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     500505510     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     515520525     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     530535540     GlyAlaAlaGlyTyrGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     545550555560     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     565570575     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     580585590     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaAlaGlyTyr     595600605     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     610615620     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     625630635640     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     645650655     GlyAlaGlyAlaGlySerGlyAlaAlaGlyTyrGlyAlaGlyAlaGly     660665670     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     675680685     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     690695700     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     705710715720     SerGlyAlaAlaGlyTyrGlyAlaGlyAlaGlySerGlyAlaGlyAla     725730735     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     740745750     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     755760765     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaAlaGly     770775780     TyrGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     785790795800     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     805810815     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     820825830     SerGlyAlaGlyAlaGlySerGlyAlaAlaGlyTyrGlyAlaGlyAla     835840845     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     850855860     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     865870875880     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     885890895     GlySerGlyAlaAlaGlyTyrGlyAlaGlyAlaGlySerGlyAlaGly     900905910     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     915920925     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     930935940     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaAla     945950955960     GlyTyrGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     965970975     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     980985990     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     99510001005     GlySerGlyAlaGlyAlaGlySerGlyAlaAlaGlyTyrGlyAlaGly     101010151020     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     1025103010351040     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     104510501055     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     106010651070     AlaGlySerGlyAlaAlaGlyTyrGlyAlaGlyAlaGlySerGlyAla     107510801085     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     109010951100     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     1105111011151120     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     112511301135     AlaGlyTyrGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     114011451150     AlaGlyAlaMetAspProGlyArgTyrGlnLeuSerAlaGlyArgTyr     115511601165     HisTyrGlnLeuValTrpCysGlnLys     11701175     (2) INFORMATION FOR SEQ ID NO:32:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 36 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:32:     GTGACTGGCCGTGGTGATAGCCCGGCTAGCGCTGCA36     (2) INFORMATION FOR SEQ ID NO:33:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 36 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:33:     GCGCTAGCCGGGCTATCACCACGGCCAGTCACTGCA36     (2) INFORMATION FOR SEQ ID NO:34:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 219 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:34:     GGTGCCGGCAGCGGTGCAGGAGCCGGTTCTGGAGCTGGCGCGGGCTCTGGCGCGGGCGCA60     GGATCCGGCGCAGGCGCTGGTTCTGGCGCAGGGGCAGGCTCTGGCGCAGGAGCGGGGTCT120     GGAGCTGCAGTGACTGGCCGTGGTGATAGCCCGGCTAGCGCTGCAGGCTATGGAGCTGGC180     GCTGGCTCAGGTGCTGGAGCAGGAAGCGGAGCGGGTGCC219     (2) INFORMATION FOR SEQ ID NO:35:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 72 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:35:     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     151015     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     202530     GlySerGlyAlaGlyAlaGlySerGlyAlaAlaValThrGlyArgGly     354045     AspSerProAlaSerAlaAlaGlyTyrGlyAlaGlyAlaGlySerGly     505560     AlaGlyAlaGlySerGlyAlaGly     6570     (2) INFORMATION FOR SEQ ID NO:36:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 1038 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: protein     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:36:     MetAspProValValLeuGlnArgArgAspTrpGluAsnProGlyVal     151015     ThrGlnLeuAsnArgLeuAlaAlaHisProProPheAlaSerAspPro     202530     MetGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     354045     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     505560     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaAlaValThrGlyArg     65707580     GlyAspSerProAlaSerAlaAlaGlyTyrGlyAlaGlyAlaGlySer     859095     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     100105110     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     115120125     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     130135140     GlyAlaAlaValThrGlyArgGlyAspSerProSerAlaAlaGlyTyr     145150155160     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     165170175     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     180185190     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     195200205     GlyAlaGlyAlaGlySerGlyAlaAlaValThrGlyArgGlyAspSer     210215220     ProSerAlaAlaGlyTyrGlyAlaGlyAlaGlySerGlyAlaGlyAla     225230235240     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     245250255     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     260265270     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaAlaVal     275280285     ThrGlyArgGlyAspSerProSerAlaAlaGlyTyrGlyAlaGlyAla     290295300     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     305310315320     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     325330335     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     340345350     GlySerGlyAlaAlaValThrGlyArgGlyAspSerProSerAlaAla     355360365     GlyTyrGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     370375380     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     385390395400     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     405410415     GlySerGlyAlaGlyAlaGlySerGlyAlaAlaValThrGlyArgGly     420425430     AspSerProSerAlaAlaGlyTyrGlyAlaGlyAlaGlySerGlyAla     435440445     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     450455460     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     465470475480     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     485490495     AlaValThrGlyArgGlyAspSerProSerAlaAlaGlyTyrGlyAla     500505510     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     515520525     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     530535540     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     545550555560     GlyAlaGlySerGlyAlaAlaValThrGlyArgGlyAspSerProSer     565570575     AlaAlaGlyTyrGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     580585590     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     595600605     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     610615620     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaAlaValThrGly     625630635640     ArgGlyAspSerProSerAlaAlaGlyTyrGlyAlaGlyAlaGlySer     645650655     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     660665670     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     675680685     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     690695700     GlyAlaAlaValThrGlyArgGlyAspSerProSerAlaAlaGlyTyr     705710715720     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     725730735     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     740745750     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     755760765     GlyAlaGlyAlaGlySerGlyAlaAlaValThrGlyArgGlyAspSer     770775780     ProSerAlaAlaGlyTyrGlyAlaGlyAlaGlySerGlyAlaGlyAla     785790795800     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     805810815     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     820825830     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaAlaVal     835840845     ThrGlyArgGlyAspSerProSerAlaAlaGlyTyrGlyAlaGlyAla     850855860     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     865870875880     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     885890895     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     900905910     GlySerGlyAlaAlaValThrGlyArgGlyAspSerProSerAlaAla     915920925     GlyTyrGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     930935940     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     945950955960     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     965970975     GlySerGlyAlaGlyAlaGlySerGlyAlaAlaValThrGlyArgGly     980985990     AspSerProSerAlaAlaGlyTyrGlyAlaGlyAlaGlySerGlyAla     99510001005     GlyAlaGlySerGlyAlaGlyAlaMetAspProGlyArgTyrGlnLeu     101010151020     SerAlaGlyArgTyrHisTyrGlnLeuTrpValCysGlnLys     102510301035     (2) INFORMATION FOR SEQ ID NO:37:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 48 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:37:     GGAGCAGGTTGTGGCGATCCCGGGAAAGGATGCTGTGTAGCTGGTGCA48     (2) INFORMATION FOR SEQ ID NO:38:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 48 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:38:     CCAGCTACACAGCATCCTTTCCCGGGATCGCCACAACCTGCTCCTGCA48     (2) INFORMATION FOR SEQ ID NO:39:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 75 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:39:     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     151015     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     202530     GlySerGlyAlaGlyAlaGlySerGlyAlaAlaGlyAlaGlyCysGly     354045     AspProGlyLysGlyCysCysValAlaGlyAlaValTyrGlyAlaGly     505560     AlaGlySerGlyAlaGlyAlaGlySerGlyAla     657075     (2) INFORMATION FOR SEQ ID NO:40:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 225 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: double     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:40:     GGTGCCGGCAGCGGTGCAGGAGCCGGTTCTGGAGCTGGCGCGGGCTCTGGCGCGGGCGCA60     GGATCCGGCGCAGGCGCTGGTTCTGGCGCAGGGGCAGGCTCTGGCGCAGGAGCGGGGTCT120     GGAGCTGCAGGAGCAGGTTGTGGCGATCCCGGGAAAGGATGCTGTGTAGCTGGTGCAGGC180     TATGGAGCTGGCGCTGGCTCAGGTGCTGGAGCAGGAAGCGGAGCG225     (2) INFORMATION FOR SEQ ID NO:41:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 1332 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: protein     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:41:     MetAspProValValLeuGlnArgArgAspTrpGluAsnProGlyVal     151015     ThrGlnLeuAsnArgLeuAlaAlaHisProProPheAlaSerAspPro     202530     MetGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     354045     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     505560     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaAlaGlyAlaGlyCys     65707580     GlyAspProGlyLysGlyCysCysValAlaGlyAlaGlyTyrGlyAla     859095     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     100105110     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     115120125     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     130135140     GlyAlaGlySerGlyAlaAlaGlyAlaGlyCysGlyAspProGlyLys     145150155160     GlyCysCysValAlaGlyAlaGlyTyrGlyAlaGlyAlaGlySerGly     165170175     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     180185190     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     195200205     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     210215220     AlaAlaGlyAlaGlyCysGlyAspProGlyLysGlyCysCysValAla     225230235240     GlyAlaGlyTyrGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     245250255     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     260265270     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     275280285     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaAlaGlyAlaGly     290295300     CysGlyAspProGlyLysGlyCysCysValAlaGlyAlaGlyTyrGly     305310315320     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     325330335     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     340345350     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     355360365     AlaGlyAlaGlySerGlyAlaAlaGlyAlaGlyCysGlyAspProGly     370375380     LysGlyCysCysValAlaGlyAlaGlyTyrGlyAlaGlyAlaGlySer     385390395400     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     405410415     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     420425430     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     435440445     GlyAlaAlaGlyAlaGlyCysGlyAspProGlyLysGlyCysCysVal     450455460     AlaGlyAlaGlyTyrGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     465470475480     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     485490495     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     500505510     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaAlaGlyAla     515520525     GlyCysGlyAspProGlyLysGlyCysCysValAlaGlyAlaGlyTyr     530535540     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     545550555560     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     565570575     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     580585590     GlyAlaGlyAlaGlySerGlyAlaAlaGlyAlaGlyCysGlyAspPro     595600605     GlyLysGlyCysCysValAlaGlyAlaGlyTyrGlyAlaGlyAlaGly     610615620     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     625630635640     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     645650655     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     660665670     SerGlyAlaAlaGlyAlaGlyCysGlyAspProGlyLysGlyCysCys     675680685     ValAlaGlyAlaGlyTyrGlyAlaGlyAlaGlySerGlyAlaGlyAla     690695700     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     705710715720     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     725730735     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaAlaGly     740745750     AlaGlyCysGlyAspProGlyLysGlyCysCysValAlaGlyAlaGly     755760765     TyrGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     770775780     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     785790795800     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     805810815     SerGlyAlaGlyAlaGlySerGlyAlaAlaGlyAlaGlyCysGlyAsp     820825830     ProGlyLysGlyCysCysValAlaGlyAlaGlyTyrGlyAlaGlyAla     835840845     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     850855860     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     865870875880     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     885890895     GlySerGlyAlaAlaGlyAlaGlyCysGlyAspProGlyLysGlyCys     900905910     CysValAlaGlyAlaGlyTyrGlyAlaGlyAlaGlySerGlyAlaGly     915920925     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     930935940     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     945950955960     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaAla     965970975     GlyAlaGlyCysGlyAspProGlyLysGlyCysCysValAlaGlyAla     980985990     GlyTyrGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     99510001005     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     101010151020     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     1025103010351040     GlySerGlyAlaGlyAlaGlySerGlyAlaAlaGlyAlaGlyCysGly     104510501055     AspProGlyLysGlyCysCysValAlaGlyAlaGlyTyrGlyAlaGly     106010651070     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     107510801085     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     109010951100     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     1105111011151120     AlaGlySerGlyAlaAlaGlyAlaGlyCysGlyAspProGlyLysGly     112511301135     CysCysValAlaGlyAlaGlyTyrGlyAlaGlyAlaGlySerGlyAla     114011451150     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     115511601165     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     117011751180     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     1185119011951200     AlaGlyAlaGlyCysGlyAspProGlyLysGlyCysCysValAlaGly     120512101215     AlaGlyTyrGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     122012251230     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     123512401245     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     125012551260     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaAlaGlyAlaGlyCys     1265127012751280     GlyAspProGlyLysGlyCysCysValAlaGlyAlaGlyTyrGlyAla     128512901295     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaMetAsp     130013051310     ProGlyArgTyrGlnLeuSerAlaGlyArgTyrHisTyrGlnLeuVal     131513201325     TrpCysGlnLys     1330     (2) INFORMATION FOR SEQ ID NO:42:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 39 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:42:     GTATGTGAACCCGGGTATATCGGTAGCCGTTGCGATGCA39     (2) INFORMATION FOR SEQ ID NO:43:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 39 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:43:     TCGCAACGGCTACCGATATACCCGGGTTCACATACTGCA39     (2) INFORMATION FOR SEQ ID NO:44:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 72 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:44:     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     151015     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     202530     GlySerGlyAlaGlyAlaGlySerGlyAlaAlaValCysGluProGly     354045     TyrIleGlySerArgCysAspAlaGlyTyrGlyAlaGlyAlaGlySer     505560     GlyAlaGlyAlaGlySerGlyAla     6570     (2) INFORMATION FOR SEQ ID NO:45:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 216 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: double     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:45:     GGTGCCGGCAGCGGTGCAGGAGCCGGTTCTGGAGCTGGCGCGGGCTCTGGCGCGGGCGCA60     GGATCCGGCGCAGGCGCTGGTTCTGGCGCAGGGGCAGGCTCTGGCGCAGGAGCGGGGTCT120     GGAGCTGCAGTATGTGAACCCGGGTATATCGGTAGCCGTTGCGATGCAGGCTATGGAGCT180     GGCGCTGGCTCAGGTGCTGGAGCAGGAAGCGGAGCG216     (2) INFORMATION FOR SEQ ID NO:46:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 18 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: double     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:46:     CTGTGTGTTAGCGAACCC18     (2) INFORMATION FOR SEQ ID NO:47:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 22 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:47:     GGGTTCGCTAACACACAGTGCA22     (2) INFORMATION FOR SEQ ID NO:48:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 784 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: protein     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:48:     MetAspProValValLeuGlnArgArgAspTrpGluAsnProGlyVal     151015     ThrGlnLeuAsnArgLeuAlaAlaHisProProPheAlaSerAspPro     202530     MetGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     354045     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     505560     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaAlaValCysGluPro     65707580     GlyTyrIleGlySerArgCysAspAlaGlyTyrGlyAlaGlyAlaGly     859095     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     100105110     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     115120125     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     130135140     SerGlyAlaAlaValCysGluProGlyTyrIleGlySerArgCysAsp     145150155160     AlaGlyTyrGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     165170175     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     180185190     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     195200205     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaAlaValCysGluPro     210215220     GlyTyrIleGlySerArgCysAspAlaGlyTyrGlyAlaGlyAlaGly     225230235240     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     245250255     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     260265270     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     275280285     SerGlyAlaAlaValCysGluProGlyTyrIleGlySerArgCysAsp     290295300     AlaGlyTyrGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     305310315320     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     325330335     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     340345350     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaAlaValCysGluPro     355360365     GlyTyrIleGlySerArgCysAspAlaGlyTyrGlyAlaGlyAlaGly     370375380     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     385390395400     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     405410415     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     420425430     SerGlyAlaAlaValCysGluProGlyTyrIleGlySerArgCysAsp     435440445     AlaGlyTyrGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     450455460     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     465470475480     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     485490495     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaAlaValCysGluPro     500505510     GlyTyrIleGlySerArgCysAspAlaGlyTyrGlyAlaGlyAlaGly     515520525     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     530535540     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     545550555560     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     565570575     SerGlyAlaAlaValCysGluProGlyTyrIleGlySerArgCysAsp     580585590     AlaGlyTyrGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     595600605     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     610615620     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     625630635640     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaAlaValCysGluPro     645650655     GlyTyrIleGlySerArgCysAspAlaGlyTyrGlyAlaGlyAlaGly     660665670     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     675680685     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     690695700     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     705710715720     SerGlyAlaAlaValCysGluProGlyTyrIleGlySerArgCysAsp     725730735     AlaGlyTyrGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     740745750     AlaGlyAlaMetAspProGlyArgTyrGlnLeuSerAlaGlyArgTyr     755760765     GlnLeuSerAlaGlyArgTyrHisTyrGlnLeuValTrpCysGlnLys     770775780     (2) INFORMATION FOR SEQ ID NO:49:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 649 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: protein     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:49:     MetAspProValValLeuGlnArgArgAspTrpGluAsnProGlyVal     151015     ThrGlnLeuAsnArgLeuAlaAlaHisProProPheAlaSerAspPro     202530     MetGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     354045     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     505560     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaAlaLeuCysValSer     65707580     GluProGlyTyrIleGlySerArgCysAspAlaGlyTyrGlyAlaGly     859095     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     100105110     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     115120125     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     130135140     AlaGlySerGlyAlaAlaLeuCysValSerGluProGlyTyrIleGly     145150155160     SerArgCysAspAlaGlyTyrGlyAlaGlyAlaGlySerGlyAlaGly     165170175     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     180185190     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     195200205     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaAla     210215220     LeuCysValSerGluProGlyTyrIleGlySerArgCysAspAlaGly     225230235240     TyrGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     245250255     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     260265270     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     275280285     SerGlyAlaGlyAlaGlySerGlyAlaAlaLeuCysValSerGluPro     290295300     GlyTyrIleGlySerArgCysAspAlaGlyTyrGlyAlaGlyAlaGly     305310315320     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     325330335     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     340345350     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     355360365     SerGlyAlaAlaLeuCysValSerGluProGlyTyrIleGlySerArg     370375380     CysAspAlaGlyTyrGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     385390395400     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     405410415     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     420425430     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaAlaLeuCys     435440445     ValSerGluProGlyTyrIleGlySerArgCysAspAlaGlyTyrGly     450455460     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     465470475480     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     485490495     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     500505510     AlaGlyAlaGlySerGlyAlaAlaLeuCysValSerGluProGlyTyr     515520525     IleGlySerArgCysAspAlaGlyTyrGlyAlaGlyAlaGlySerGly     530535540     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     545550555560     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     565570575     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     580585590     AlaAlaLeuCysValSerGluProGlyTyrIleGlySerArgCysAsp     595600605     AlaGlyTyrGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     610615620     AlaGlyAlaMetAspProGlyArgTyrGlnLeuSerAlaGlyArgTyr     625630635640     HisTyrGlnLeuValTrpCysGlnLys     645     (2) INFORMATION FOR SEQ ID NO:50:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 21 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:50:     GlyLeuProGlyProLysGlyAspArgGlyAspAlaGlyProLysGly     151015     AlaAspGlySerPro     20     (2) INFORMATION FOR SEQ ID NO:51:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 57 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:51:     AATTCGGTGCCCCTGGTCCGCCTGGTCCGCCTGGTCCACCGGGTCCTCCGGGGGCTC57     (2) INFORMATION FOR SEQ ID NO:52:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 57 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:52:     AATTCGGTGCCCCTGGTCCGCCTGGTCCGCCTGGTCCACCGGGTCCTCCGGGGGCTC57     (2) INFORMATION FOR SEQ ID NO:53:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 38 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:53:     CysCysGlyGlyGlyThrCysCysThrCysCysAlaGlyGlyAlaCys     151015     CysGlyCysCysAlaGlyGlyThrCysCysGlyCysCysThrGlyGly     202530     ThrCysCysCysCysCys     35     (2) INFORMATION FOR SEQ ID NO:54:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 54 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:54:     GGGTCCTGCAGGTCCAGTAGGTAGCCCCCGGTGCCATGTGTGCGCATCGATATC54     (2) INFORMATION FOR SEQ ID NO:55:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 54 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:55:     GGGTCCTGCAGGTCCAGTAGGTAGCCCCCGGTGCCATGTGTGCGCATCGATATC54     (2) INFORMATION FOR SEQ ID NO:56:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 57 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:56:     ThrCysGlyAlaGlyAlaThrAlaThrCysGlyAlaThrGlyCysGly     151015     CysAlaCysAlaCysAlaThrGlyGlyCysAlaCysCysGlyGlyGly     202530     GlyCysThrAlaCysCysThrAlaCysThrGlyGlyAlaCysCysThr     354045     GlyCysAlaGlyGlyAlaCysCysCys     5055     (2) INFORMATION FOR SEQ ID NO:57:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 41 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:57:     GlyAlaProGlyProProGlyProProGlyProProGlyProProGly     151015     AlaProGlyProProGlyProProGlyProProGlyProProGlyPro     202530     AlaGlyProValGlySerProGlyAla     3540     (2) INFORMATION FOR SEQ ID NO:58:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 123 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: double     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:58:     GGTGCCCCTGGTCCGCCTGGTCCGCCTGGTCCACCGGGTCCTCCGGGGGCTCCGGGTCCT60     CCAGGACCGCCAGGTCCGCCTGGTCCCCCGGGTCCTGCAGGTCCAGTAGGTAGCCCCGGT120     GCC123     (2) INFORMATION FOR SEQ ID NO:59:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 63 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:59:     CCGGGACTGCCAGGCCCGAAAGGCGATCGTGGCGACGCCGGTCCTAAAGGCGCAGATGGC60     AGC63     (2) INFORMATION FOR SEQ ID NO:60:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 67 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:60:     CCGGGCTGCCATCTGCGCCTTTAGGACCGGCGTCGCCACGATCGCCTTTCGGGCCTGGCA60     GTCCCGG67     (2) INFORMATION FOR SEQ ID NO:61:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 62 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:61:     GlyAlaProGlyProProGlyProProGlyProProGlyProProGly     151015     AlaProGlyProProGlyProProGlyProProGlyProProGlyLeu     202530     ProGlyProLysGlyAspArgGlyAspAlaGlyProArgGlyAlaAsp     354045     GlySerProGlyProAlaGlyProValGlySerProGlyAla     505560     (2) INFORMATION FOR SEQ ID NO:62:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 186 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: double     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:62:     GGTGCCCCTGGTCCGCCTGGTCCGCCTGGTCCACCGGGTCCTCCGGGGGCTCCGGGTCCT60     CCAGGACCGCCAGGTCCGCCTGGTCCCCCGGGACTGCCAGGCCCGAAAGGCGATCGTGGC120     GACGCCGGTCCTAAAGGCGCAGATGGCAGCCCGGGTCCTGCAGGTCCAGTAGGTAGCCCC180     GGTGCC186     (2) INFORMATION FOR SEQ ID NO:63:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 74 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:63:     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     151015     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     202530     GlySerGlyAlaGlyAlaGlySerGlyAlaAlaLeuCysValSerGlu     354045     ProGlyTyrIleGlySerArgCysAspAlaGlyTyrGlyAlaGlyAla     505560     GlySerGlyAlaGlyAlaGlySerGlyAla     6570     (2) INFORMATION FOR SEQ ID NO:64:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 222 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: double     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:64:     GGTGCCGGCAGCGGTGCAGGAGCCGGTTCTGGAGCTGGCGCGGGCTCTGGCGCGGGCGCA60     GGATCCGGCGCAGGCGCTGGTTCTGGCGCAGGGGCAGGCTCTGGCGCAGGAGCGGGGTCT120     GGAGCTGCACTGTGTGTTAGCGAACCCGGGTATATCGGTAGCCGTTGCGATGCAGGCTAT180     GGAGCTGGCGCTGGCTCAGGTGCTGGAGCAGGAAGCGGAGCG222     (2) INFORMATION FOR SEQ ID NO:65:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 408 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: protein     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:65:     MetAspProValValLeuGlnArgArgAspTrpGluAsnProGlyVal     151015     ThrGlnLeuAsnArgLeuAlaAlaHisProProPheAlaSerAspPro     202530     MetGlyAlaProGlyProProGlyProProGlyProProGlyProPro     354045     GlyAlaProGlyProProGlyProProGlyProProGlyProProGly     505560     ProAlaGlyProValGlySerProGlyAlaProGlyProProGlyPro     65707580     ProGlyProProGlyProProGlyAlaProGlyProProGlyProPro     859095     GlyProProGlyProProGlyProAlaGlyProValGlySerProGly     100105110     AlaProGlyProProGlyProProGlyProProGlyProProGlyAla     115120125     ProGlyProProGlyProProGlyProProGlyProProGlyProAla     130135140     GlyProValGlySerProGlyAlaProGlyProProGlyProProGly     145150155160     ProProGlyProProGlyAlaProGlyProProGlyProProGlyPro     165170175     ProGlyProProGlyProAlaGlyProValGlySerProGlyAlaPro     180185190     GlyProProGlyProProGlyProProGlyProProGlyAlaProGly     195200205     ProProGlyProProGlyProProGlyProProGlyProAlaGlyPro     210215220     ValGlySerProGlyAlaProGlyProProGlyProProGlyProPro     225230235240     GlyProProGlyAlaProGlyProProGlyProProGlyProProGly     245250255     ProProGlyProAlaGlyProValGlySerProGlyAlaProGlyPro     260265270     ProGlyProProGlyProProGlyProProGlyAlaProGlyProPro     275280285     GlyProProGlyProProGlyProProGlyProAlaGlyProValGly     290295300     SerProGlyAlaProGlyProProGlyProProGlyProProGlyPro     305310315320     ProGlyAlaProGlyProProGlyProProGlyProProGlyProPro     325330335     GlyProAlaGlyProValGlySerProGlyAlaProGlyProProGly     340345350     ProProGlyProProGlyProProGlyAlaProGlyProProGlyPro     355360365     ProGlyProProGlyProProGlyProAlaGlyProValGlySerPro     370375380     GlyAlaMetCysAlaHisArgTyrGlnLeuSerAlaGlyArgTyrHis     385390395400     TyrGlnLeuValTrpCysGlnLys     405     (2) INFORMATION FOR SEQ ID NO:66:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 357 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: protein     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:66:     MetAspProValValLeuGlnArgArgAspTrpGluAsnProGlyVal     151015     ThrGlnLeuAsnArgLeuAlaAlaHisProProPheAlaSerAspPro     202530     MetGlyAlaProGlyProProGlyProProGlyProProGlyProPro     354045     GlyAlaProGlyProProGlyProProGlyProProGlyProProGly     505560     LeuProGlyProLysGlyAspArgGlyAspAlaGlyProLysGlyAla     65707580     AspGlySerProGlyProAlaGlyProValGlySerProGlyAlaPro     859095     GlyProProGlyProProGlyProProGlyProProGlyAlaProGly     100105110     ProProGlyProProGlyProProGlyProProGlyLeuProGlyPro     115120125     LysGlyAspArgGlyAspAlaGlyProLysGlyAlaAspGlySerPro     130135140     GlyProAlaGlyProValGlySerProGlyAlaProGlyProProGly     145150155160     ProProGlyProProGlyProProGlyAlaProGlyProProGlyPro     165170175     ProGlyProProGlyProProGlyLeuProGlyProLysGlyAspArg     180185190     GlyAspAlaGlyProLysGlyAlaAspGlySerProGlyProAlaGly     195200205     ProValGlySerProGlyAlaProGlyProProGlyProProGlyPro     210215220     ProGlyProProGlyAlaProGlyProProGlyProProGlyProPro     225230235240     GlyProProGlyLeuProGlyProLysGlyAspArgGlyAspAlaGly     245250255     ProLysGlyAlaAspGlySerProGlyProAlaGlyProValGlySer     260265270     ProGlyAlaProGlyProProGlyProProGlyProProGlyProPro     275280285     GlyAlaProGlyProProGlyProProGlyProProGlyProProGly     290295300     LeuProGlyProLysGlyAspArgGlyAspAlaGlyProLysGlyAla     305310315320     AspGlySerProGlyProAlaGlyProValGlySerProGlyAlaMet     325330335     CysAlaHisArgTyrGlnLeuSerAlaGlyArgTyrHisTyrGlnLeu     340345350     ValTrpCysGlnLys     355     (2) INFORMATION FOR SEQ ID NO:67:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 15 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:67:     GlyArgGlyGlySerPheGlyGlySerSerTyrGlyGlyGlySer     151015     (2) INFORMATION FOR SEQ ID NO:68:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 52 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:68:     GlyThrGlyCysCysGlyGlyAlaThrGlyCysThrCysGlyAlaGly     151015     CysGlyCysThrAlaAlaCysThrGlyAlaAlaThrThrGlyGlyCys     202530     AlaGlyAlaAlaGlyCysGlyAlaAlaGlyCysThrThrAlaThrGly     354045     CysAlaThrGly     50     (2) INFORMATION FOR SEQ ID NO:69:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 46 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:69:     CATAAGCTTCGCTTCTGCCAATTTCAGTTTAGCGCTCGAGCATCCG46     (2) INFORMATION FOR SEQ ID NO:70:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 56 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:70:     AGCTTGAGCTGGCAGAAGCTAAACTGAAGCTGGCGGAAGCTAAGCGAGCTCATGCA56     (2) INFORMATION FOR SEQ ID NO:71:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 48 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:71:     TGAGCTCGCTTAGCTTCCGCCAGCTTCAGTTTAGCTTCTGCCAGCTCA48     (2) INFORMATION FOR SEQ ID NO:72:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 60 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:72:     AATTGCTAAGCTGGAGCTGGCAGAAGCTAAACTGAAGTTAGCGGAAGCTAAACTGGAGCT60     (2) INFORMATION FOR SEQ ID NO:73:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 52 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:73:     CCAGTTTAGCTTCCGCTAACTTCAGTTTAGCTTCTGCCAGCTCCAGCTTAGC52     (2) INFORMATION FOR SEQ ID NO:74:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 61 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:74:     CGCGGAAGCCAAACTGAAGCTGGCGGAGGCTAAATTGGAACTGGCCGAGGCTAAATGCAT60     G61     (2) INFORMATION FOR SEQ ID NO:75:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 62 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:75:     CATTTTAGCCTCGGCCAGTTCCAATTTAGCCTCCGCCAGCTTCAGTTTGGCTTCCGCGAG60     CT62     (2) INFORMATION FOR SEQ ID NO:76:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 132 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: double     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:76:     GCTAAACTGAAATTGGCAGAAGCGAAGCTTGAGCTGGCAGAAGCTAAACTGAAGTTAGCG60     GAAGCTAAACTGGAGCTCGCGGAAGCCAAACTGAAGCTGGCGGAGGCTAAATTGGAACTG120     GCCGAGGCTAAA132     (2) INFORMATION FOR SEQ ID NO:77:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 44 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:77:     AlaLysLeuLysLeuAlaGluAlaLysLeuGluLeuAlaGluAlaLys     151015     LeuLysLeuAlaGluAlaLysLeuGluLeuAlaGluAlaLysLeuLys     202530     LeuAlaGluAlaLysLeuGluLeuAlaGluAlaLys     3540     (2) INFORMATION FOR SEQ ID NO:78:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 572 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: protein     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:78:     MetAspProValValLeuGlnArgArgAspTrpGluAsnProGlyVal     151015     ThrGlnLeuAsnArgLeuAlaAlaHisProProPheAlaSerAspPro     202530     MetGlyAlaGlyCysSerSerAlaLysLeuLysLeuAlaGluAlaLys     354045     LeuGluLeuAlaGluAlaLysLeuLysLeuAlaGluAlaLysLeuGlu     505560     LeuAlaGluAlaLysLeuLysLeuAlaGluAlaLysLeuGluLeuAla     65707580     GluAlaLysLeuLysLeuAlaGluAlaLysLeuGluLeuAlaGluAla     859095     LysLeuLysLeuAlaGluAlaLysLeuGluLeuAlaGluAlaLysLeu     100105110     LysLeuAlaGluAlaLysLeuGluLeuAlaGluAlaLysLeuLysLeu     115120125     AlaGluAlaLysLeuGluLeuAlaGluAlaLysLeuLysLeuAlaGlu     130135140     AlaLysLeuGluLeuAlaGluAlaLysLeuLysLeuAlaGluAlaLys     145150155160     LeuGluLeuAlaGluAlaLysLeuLysLeuAlaGluAlaLysLeuGlu     165170175     LeuAlaGluAlaLysLeuLysLeuAlaGluAlaLysLeuGluLeuAla     180185190     GluAlaLysLeuLysLeuAlaGluAlaLysLeuGluLeuAlaGluAla     195200205     LysLeuLysLeuAlaGluAlaLysLeuGluLeuAlaGluAlaLysLeu     210215220     LysLeuAlaGluAlaLysLeuGluLeuAlaGluAlaLysLeuLysLeu     225230235240     AlaGluAlaLysLeuGluLeuAlaGluAlaLysLeuLysLeuAlaGlu     245250255     AlaLysLeuGluLeuAlaGluAlaLysLeuLysLeuAlaGluAlaLys     260265270     LeuGluLeuAlaGluAlaLysLeuLysLeuAlaGluAlaLysLeuGlu     275280285     LeuAlaGluAlaLysLeuLysLeuAlaGluAlaLysLeuGluLeuAla     290295300     GluAlaLysLeuLysLeuAlaGluAlaLysLeuGluLeuAlaGluAla     305310315320     LysLeuLysLeuAlaGluAlaLysLeuGluLeuAlaGluAlaLysLeu     325330335     LysLeuAlaGluAlaLysLeuGluLeuAlaGluAlaLysLeuLysLeu     340345350     AlaGluAlaLysLeuGluLeuAlaGluAlaLysLeuLysLeuAlaGlu     355360365     AlaLysLeuGluLeuAlaGluAlaLysLeuLysLeuAlaGluAlaLys     370375380     LeuGluLeuAlaGluAlaLysLeuLysLeuAlaGluAlaLysLeuGlu     385390395400     LeuAlaGluAlaLysLeuLysLeuAlaGluAlaLysLeuGluLeuAla     405410415     GluAlaLysLeuLysLeuAlaGluAlaLysLeuGluLeuAlaGluAla     420425430     LysLeuLysLeuAlaGluAlaLysLeuGluLeuAlaGluAlaLysLeu     435440445     LysLeuAlaGluAlaLysLeuGluLeuAlaGluAlaLysLeuLysLeu     450455460     AlaGluAlaLysLeuGluLeuAlaGluAlaLysLeuLysLeuAlaGlu     465470475480     AlaLysLeuGluLeuAlaGluAlaLysLeuLysLeuAlaGluAlaLys     485490495     LeuGluLeuAlaGluAlaLysLeuLysLeuAlaGluAlaLysLeuGlu     500505510     LeuAlaGluAlaLysLeuLysLeuAlaGluAlaLysLeuGluLeuAla     515520525     GluAlaLysLeuLysLeuAlaGluAlaLysLeuGluLeuAlaGluAla     530535540     LysMetHisAlaHisProProGlySerIleSerAspGlnLeuSerAla     545550555560     GlyArgTyrHisTyrGlnLeuValTrpCysGlnLys     565570     (2) INFORMATION FOR SEQ ID NO:79:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 740 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: protein     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:79:     MetAspProValValLeuGlnArgArgAspTrpGluAsnProGlyVal     151015     ThrGlnLeuAsnArgLeuAlaAlaHisProProPheAlaSerAspPro     202530     MetGlyAlaGlyCysSerSerAlaLysLeuLysLeuAlaGluAlaLys     354045     LeuGluLeuAlaGluAlaLysLeuLysLeuAlaGluAlaLysLeuGlu     505560     LeuAlaGluAlaLysLeuLysLeuAlaGluAlaLysLeuGluLeuAla     65707580     GluAlaLysLeuLysLeuAlaGluAlaLysLeuGluLeuAlaGluAla     859095     LysLeuLysLeuAlaGluAlaLysLeuGluLeuAlaGluAlaLysLeu     100105110     LysLeuAlaGluAlaLysLeuGluLeuAlaGluAlaLysLeuLysLeu     115120125     AlaGluAlaLysLeuGluLeuAlaGluAlaLysLeuLysLeuAlaGlu     130135140     AlaLysLeuGluLeuAlaGluAlaLysLeuLysLeuAlaGluAlaLys     145150155160     LeuGluLeuAlaGluAlaLysLeuLysLeuAlaGluAlaLysLeuGlu     165170175     LeuAlaGluAlaLysLeuLysLeuAlaGluAlaLysLeuGluLeuAla     180185190     GluAlaLysLeuLysLeuAlaGluAlaLysLeuGluLeuAlaGluAla     195200205     LysLeuLysLeuAlaGluAlaLysLeuGluLeuAlaGluAlaLysLeu     210215220     LysLeuAlaGluAlaLysLeuGluLeuAlaGluAlaLysLeuLysLeu     225230235240     AlaGluAlaLysLeuGluLeuAlaGluAlaLysLeuLysLeuAlaGlu     245250255     AlaLysLeuGluLeuAlaGluAlaLysLeuLysLeuAlaGluAlaLys     260265270     LeuGluLeuAlaGluAlaLysLeuLysLeuAlaGluAlaLysLeuGlu     275280285     LeuAlaGluAlaLysLeuLysLeuAlaGluAlaLysLeuGluLeuAla     290295300     GluAlaLysLeuLysLeuAlaGluAlaLysLeuGluLeuAlaGluAla     305310315320     LysLeuLysLeuAlaGluAlaLysLeuGluLeuAlaGluAlaLysLeu     325330335     LysLeuAlaGluAlaLysLeuGluLeuAlaGluAlaLysLeuLysLeu     340345350     AlaGluAlaLysLeuGluLeuAlaGluAlaLysLeuLysLeuAlaGlu     355360365     AlaLysLeuGluLeuAlaGluAlaLysLeuLysLeuAlaGluAlaLys     370375380     LeuGluLeuAlaGluAlaLysLeuLysLeuAlaGluAlaLysLeuGlu     385390395400     LeuAlaGluAlaLysLeuLysLeuAlaGluAlaLysLeuGluLeuAla     405410415     GluAlaLysLeuLysLeuAlaGluAlaLysLeuGluLeuAlaGluAla     420425430     LysLeuLysLeuAlaGluAlaLysLeuGluLeuAlaGluAlaLysLeu     435440445     LysLeuAlaGluAlaLysLeuGluLeuAlaGluAlaLysLeuLysLeu     450455460     AlaGluAlaLysLeuGluLeuAlaGluAlaLysLeuLysLeuAlaGlu     465470475480     AlaLysLeuGluLeuAlaGluAlaLysLeuLysLeuAlaGluAlaLys     485490495     LeuGluLeuAlaGluAlaLysLeuLysLeuAlaGluAlaLysLeuGlu     500505510     LeuAlaGluAlaLysLeuLysLeuAlaGluAlaLysLeuGluLeuAla     515520525     GluAlaLysLeuLysLeuAlaGluAlaLysLeuGluLeuAlaGluAla     530535540     LysLeuLysLeuAlaGluAlaLysLeuGluLeuAlaGluAlaLysLeu     545550555560     LysLeuAlaGluAlaLysLeuGluLeuAlaGluAlaLysLeuLysLeu     565570575     AlaGluAlaLysLeuGluLeuAlaGluAlaLysLeuLysLeuAlaGlu     580585590     AlaLysLeuGluLeuAlaGluAlaLysLeuLysLeuAlaGluAlaLys     595600605     LeuGluLeuAlaGluAlaLysLeuLysLeuAlaGluAlaLysLeuGlu     610615620     LeuAlaGluAlaLysLeuLysLeuAlaGluAlaLysLeuGluLeuAla     625630635640     GluAlaLysLeuLysLeuAlaGluAlaLysLeuGluLeuAlaGluAla     645650655     LysLeuLysLeuAlaGluAlaLysLeuGluLeuAlaGluAlaLysLeu     660665670     LysLeuAlaGluAlaLysLeuGluLeuAlaGluAlaLysLeuLysLeu     675680685     AlaGluAlaLysLeuGluLeuAlaGluAlaLysLeuLysLeuAlaGlu     690695700     AlaLysLeuGluLeuAlaGluAlaLysMetHisAlaHisProProGly     705710715720     SerIleSerAspGlnLeuSerAlaGlyArgTyrHisTyrGlnLeuVal     725730735     TrpCysGlnLys     740     (2) INFORMATION FOR SEQ ID NO:80:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 63 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:80:     GGCCGAGGGCCGTGGTGGCAGCTTCGGTGGATCCTCTTATGGTGGCGGTTCTGCTAAAAT60     GCA63     (2) INFORMATION FOR SEQ ID NO:81:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 55 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:81:     TTTTAGCAGAACCGCCACCATAAGAGGATCCACCGAAGCTGCCACCACGGCCCTC55     (2) INFORMATION FOR SEQ ID NO:82:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 175 base pairs     (B) TYPE: nucleic acid     (C) STRANDEDNESS: double     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:82:     GCTAAACTGAATTGGCAGAAGCGAAGCTGGAGCTGGCAGAAGCTAAACTGAAGTTAGCGG60     AAGCTAAACTGGAGCTCGCGGAAGCCAAACTGAAGCTGGCGGAGGCTAAATTGGAACTGG120     CCGAGGGCCGTGGTGGCAGCTTCGGTGGATCCTCTTATGGTGGCGGTTCTGCTAA175     (2) INFORMATION FOR SEQ ID NO:83:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 59 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:83:     AlaLysLeuLysLeuAlaGluAlaLysLeuGluLeuAlaGluAlaLys     151015     LeuLysLeuAlaGluAlaLysLeuGluLeuAlaGluAlaLysLeuLys     202530     LeuAlaGluAlaLysLeuGluLeuAlaGluGlyArgGlyGlySerPhe     354045     GlyGlySerSerTyrGlyGlyGlySerAlaLys     5055     (2) INFORMATION FOR SEQ ID NO:84:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 125 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: protein     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:84:     MetAspProValValLeuGlnArgArgAspTrpGluAsnProGlyVal     151015     ThrGlnLeuAsnArgLeuAlaAlaHisProProPheAlaSerAspPro     202530     MetGlyAlaGlyCysSerSerAlaLysLeuLysLeuAlaGluAlaLys     354045     LeuGluLeuAlaGluAlaLysLeuLysLeuAlaGluAlaLysLeuGlu     505560     LeuAlaGluAlaLysLeuLysLeuAlaGluAlaLysLeuGluLeuAla     65707580     GluGlyArgGlyGlySerPheGlyGlySerSerTyrGlyGlyGlySer     859095     AlaLysMetHisAlaHisProProGlySerIleSerAspGlnLeuSer     100105110     AlaGlyArgTyrHisTyrGlnLeuValTrpCysGlnLys     115120125     (2) INFORMATION FOR SEQ ID NO:85:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 5 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:85:     TyrIleGlySerArg     15     (2) INFORMATION FOR SEQ ID NO:86:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 25 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:86:     ProGluTyrAspGlyGluThrArgAlaLysValLysAlaHisSerGln     151015     ThrHisArgValAspThrLeuArgTyr     2025     (2) INFORMATION FOR SEQ ID NO:87:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 22 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:87:     ThrArgLysTrpAlaAlaHisValGluGlnLeuArgAlaTyrGluGly     151015     ThrValGluTrpArgTyr     20     (2) INFORMATION FOR SEQ ID NO:88:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 4 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:88:     AspProGlyLys     1     (2) INFORMATION FOR SEQ ID NO:89:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 4 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:89:     AsnProGlyCys     1     (2) INFORMATION FOR SEQ ID NO:90:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 4 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:90:     ArgProGlyGlu     1     (2) INFORMATION FOR SEQ ID NO:91:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 4 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:91:     GlyAlaGlyAsp     1     (2) INFORMATION FOR SEQ ID NO:92:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 4 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:92:     GlyAlaGlyCys     1     (2) INFORMATION FOR SEQ ID NO:93:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 4 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:93:     GlyAlaGlyLys     1     (2) INFORMATION FOR SEQ ID NO:94:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 5 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:94:     GlyGluGlyValPro     15     (2) INFORMATION FOR SEQ ID NO:95:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 5 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:95:     GlyCysGlyValPro     15     (2) INFORMATION FOR SEQ ID NO:96:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 5 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:96:     GlyLysGlyValPro     15     (2) INFORMATION FOR SEQ ID NO:97:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 36 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:97:     GlyAlaGlyAlaGlyGlnGlyAlaGlyAlaGlyGlnGlyAlaGlyAla     151015     GlyGlnGlyAlaGlyAlaGlyGlnGlyAlaGlyAlaGlyGlnGlyAla     202530     GlyAlaGlyGln     35     (2) INFORMATION FOR SEQ ID NO:98:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 63 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:98:     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     151015     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     202530     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     354045     GlyAlaGlyAlaGlySerGlyAlaAlaGlyTyrGlyAlaGlyTyr     505560     (2) INFORMATION FOR SEQ ID NO:99:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 97 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:99:     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     151015     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     202530     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     354045     GlyAlaGlyAlaGlySerGlyAlaAlaAlaArgProSerThrLysArg     505560     GlnArgPheArgHisArgAsnArgLysGlyTyrArgSerGlnArgGly     65707580     HisSerArgGlyArgAsnGlnAsnSerArgArgProSerAlaAlaGly     859095     Tyr     (2) INFORMATION FOR SEQ ID NO:100:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 142 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:100:     TrpProCysAspAsxValProGlxCysArgIleGluArgCysProIle     151015     XaaXaaXaaTrpXaaXaaXaaHisProLeuAlaSerGluArgGluThr     202530     IleIleIleHisProLeuAlaSerIleIleIleProArgSerXaaXaa     354045     TyrXaaXaaAsxGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     505560     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     65707580     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     859095     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaAlaAlaArgPro     100105110     SerLeuThrLysLysGlnArgPheArgHisArgAsnArgLysGlyTyr     115120125     ArgSerGlnArgGlyHisSerArgArgProSerAlaGlyTyr     130135140     (2) INFORMATION FOR SEQ ID NO:101:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 83 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:101:     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     151015     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     202530     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     354045     GlyAlaGlyAlaGlySerGlyMetValThrGlyArgGlyAspSerPro     505560     AlaSerAlaAlaValCysGluProGlyTyrIleGlySerArgCysAsp     65707580     AlaGlyTyr     (2) INFORMATION FOR SEQ ID NO:102:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 86 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:102:     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     151015     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     202530     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     354045     GlyAlaGlyAlaGlySerGlyAlaAlaValThrGlyArgGlyAspSer     505560     ProAlaSerAlaAlaLeuCysValSerGluProGlyTyrIleGlySer     65707580     ArgCysAspAlaGlyTyr     85     (2) INFORMATION FOR SEQ ID NO:103:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 123 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:103:     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     151015     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyVal     202530     GlyValGlyGlyValGlyValGlyGlyValGlyValGlyGlyValGly     354045     ValGlyGlyValGlyValGlyGlyValGlyValGlyGlyValGlyVal     505560     GlyGlyValGlyValGlyGlyAlaGlyAlaGlySerGlyAlaGlyAla     65707580     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     859095     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaAlaValThrGly     100105110     ArgGlyAspSerProAlaSerAlaAlaGlyTyr     115120     (2) INFORMATION FOR SEQ ID NO:104:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 159 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:104:     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     151015     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     202530     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     354045     GlyValGlyValGlyGlyValGlyValGlyGlyValGlyValGlyGly     505560     ValGlyValGlyGlyValGlyValGlyGlyValGlyValGlyGlyVal     65707580     GlyValGlyGlyValGlyValGlyGlyAlaGlyAlaGlySerGlyAla     859095     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     100105110     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     115120125     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     130135140     AlaValThrGlyArgGlyAspSerProAlaSerAlaAlaGlyTyr     145150155     (2) INFORMATION FOR SEQ ID NO:105:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 146 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:105:     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     151015     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     202530     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     354045     GlyAlaGlyAlaGlySerGlyAlaAlaGlyAlaGlyCysGlyAspPro     505560     GlyLysGlyCysCysValAlaGlyAlaGlyTyrGlyAlaGlyAlaGly     65707580     SerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGly     859095     AlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGly     100105110     AlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGly     115120125     SerGlyAlaAlaValThrGlyArgGlyAspSerProAlaSerAlaAla     130135140     GlyTyr     145     (2) INFORMATION FOR SEQ ID NO:106:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 48 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:106:     GlyAlaProGlyProProGlyProProGlyProProGlyProProGly     151015     AlaProGlyProProGlyProProGlyProProGlyProAlaValThr     202530     GlyArgGlyAspSerProAlaSerAlaAlaGlyProValGlySerPro     354045     (2) INFORMATION FOR SEQ ID NO:107:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 49 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:107:     GlyAlaProGlyProProGlyProProGlyProProGlyProProGly     151015     AlaProGlyProProGlyProProGlyProProGlyProAlaValCys     202530     GluProGlyTyrIleGlySerArgCysAspAlaGlyProValGlySer     354045     Pro     (2) INFORMATION FOR SEQ ID NO:108:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 51 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:108:     GlyAlaProGlyProProGlyProProGlyProProGlyProProGly     151015     AlaProGlyProProGlyProProGlyProProGlyProAlaSerCys     202530     ValSerGluProGlyTyrIleGlySerArgCysAspAlaGlyProVal     354045     GlySerPro     50     (2) INFORMATION FOR SEQ ID NO:109:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 73 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:109:     GlyAlaProGlyProProGlyProProGlyProProGlyProProGly     151015     AlaProGlyProProGlyProProGlyProProGlyProAlaAlaArg     202530     ProSerLeuThrLysLysGlnArgPheArgHisArgAsnArgLysGly     354045     TyrArgSerGlnArgGlyHisSerArgGlyArgAsnGlnAsnSerArg     505560     ArgProSerGlyProValGlySerPro     6570     (2) INFORMATION FOR SEQ ID NO:110:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 73 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:110:     GlyAlaProGlyProProGlyProProGlyProProGlyProProGly     151015     AlaProGlyProProGlyProProGlyProProGlyProAlaAlaArg     202530     ProSerLeuThrLysLysGlnArgPheArgHisArgAsnArgLysGly     354045     TyrArgSerGlnArgGlyHisSerArgGlyArgAsnGlnAsnSerArg     505560     ArgProSerGlyProValGlySerPro     6570     (2) INFORMATION FOR SEQ ID NO:111:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 69 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:111:     GlyAlaProGlyProProGlyProProGlyProProGlyProProGly     151015     AlaProGlyProProGlyProProGlyProProGlyLeuProGlyPro     202530     LysGlyAspArgGlyAspAlaGlyProLysGlyAlaAspGlySerPro     354045     GlyProAlaValThrGlyArgGlyAspSerProAlaSerAlaAlaGly     505560     ProValGlySerPro     65     (2) INFORMATION FOR SEQ ID NO:112:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 69 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:112:     GlyAlaProGlyProProGlyProProGlyProProGlyProProGly     151015     AlaProGlyProProGlyProProGlyProProGlyLeuProGlyPro     202530     LysGlyAspArgGlyAspAlaGlyProLysGlyAspGlySerProGly     354045     ProAlaValCysGluProGlyTyrIleGlySerArgCysAspAlaGly     505560     ProValGlySerPro     65     (2) INFORMATION FOR SEQ ID NO:113:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 72 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:113:     GlyAlaProGlyProProGlyProProGlyProProGlyProProGly     151015     AlaProGlyProProGlyProProGlyProProGlyLeuProGlyPro     202530     LysGlyAspArgGlyAspAlaGlyProLysGlyAlaAspGlySerPro     354045     GlyProAlaLeuCysValSerGluProGlyTyrIleGlySerArgCys     505560     AspAlaGlyProValGlySerPro     6570     (2) INFORMATION FOR SEQ ID NO:114:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 82 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: cDNA     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:114:     GlyAlaProGlyProProGlyProProGlyProProGlyProProGly     151015     AlaProGlyProProGlyProProGlyProProGlyLeuProGlyPro     202530     LysGlyAspArgGlyAspAlaGlyProLysGlyAlaAspGlySerPro     354045     GlyProAlaValThrGlyArgGlyAspSerProAlaSerAlaAlaVal     505560     CysGluProGlyTyrIleGlySerArgCysAspAlaGlyProValGly     65707580     SerPro     (2) INFORMATION FOR SEQ ID NO:115:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 83 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:115:     GlyAlaProGlyProProGlyProProGlyProProGlyProProGly     151015     AlaProGlyProProGlyProProGlyProProGlyLeuProGlyPro     202530     LysGlyAspArgGlyAspAlaGlyProLysGlyAlaAspGlySerGly     354045     ProAlaValThrGlyArgGlyAspSerProAlaSerAlaAlaLeuCys     505560     ValSerGluProGlyTyrIleGlySerArgCysAspAlaGlyProVal     65707580     GlySerPro     (2) INFORMATION FOR SEQ ID NO:116:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 30 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:116:     TyrLysAlaLysProSerTyrProProThrTyrLysAlaLysProSer     151015     TyrProProThrTyrLysAlaLysProSerTyrProProThr     202530     (2) INFORMATION FOR SEQ ID NO:117:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 92 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:117:     GlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAla     151015     GlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySerGlyAla     202530     GlyAlaGlySerGlyAlaGlyAlaGlySerGlyAlaGlyAlaGlySer     354045     GlyAlaGlyAlaGlySerGlyAlaAlaValThrTyrLysAlaLysPro     505560     SerTyrProProThrTyrLysAlaLysProSerTyrProProThrTyr     65707580     LysAlaLysProSerTyrProProThrAlaGlyTyr     8590     (2) INFORMATION FOR SEQ ID NO:118:     (i) SEQUENCE CHARACTERISTICS:     (A) LENGTH: 69 amino acids     (B) TYPE: amino acid     (C) STRANDEDNESS: single     (D) TOPOLOGY: linear     (ii) MOLECULE TYPE: peptide     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:118:     GlyAlaProGlyProProGlyProProGlyProProGlyProProGly     151015     AlaProGlyProProGlyProProGlyProProGlyProProThrTyr     202530     LysAlaLysProSerTyrProProThrTyrLysAlaLysProSerTyr     354045     ProProThrTyrLysAlaLysProSerTyrProProGlyProAlaCys     505560     ProValGlySerPro     65 

What is claimed is:
 1. A DNA sequence encoding a proteinaceous polymer comprising segments of repeating units of from 3-9 amino acids naturally occurring fibroin, said segments capable of assembling into aligned structures to be formable into articles, said proteinaceous polymer having a molecular weight of at least about 15 Kdal, with at least two segments joined by an intervening oligopeptide other than said repeating units, wherein said intervening oligopeptide is unaligned, said polymer has individual segments of the same or different repeating units, wherein said intervening oligopeptide comprises RGD.
 2. A DNA sequence according to claim 1, wherein said segments are of from about 25 to 150 amino acids, and said intervening oligopeptide is between each of said segments and is of from about 4 to 50 amino acids.
 3. A DNA sequence according to claim 1, wherein said repeating units comprise the sequence GAGAGS (SEQ ID NO:36, positions 91-96).
 4. A DNA sequence according to claim 1, wherein said intervening oligopeptide includes the amino acid sequence AVTGRGDSPAS (SEQ ID NO: 15).
 5. A vector comprising a replication system and a DNA sequence according to claim
 1. 6. A vector according to claim 5, wherein said replication system is a prokaryotic system.
 7. A prokaryotic cell comprising a vector comprising a replication system and a DNA sequence according to claim
 1. 8. A DNA sequence encoding a proteinaceous polymer having a silk protein repeating unit, wherein the polymer is of at least 15 kDal, and is comprised of segments of the formula (G A G A G S)₉ D A A V T G R G D S P A S A A G Y (SEQ ID NO:36, positions 91-160). 